TIN(1)

NAME
tin, rtin - Usenet newsreader

SYNOPSIS
tin [[-h|-H|-V] | [[-a] [-dlnq|-Q] [-ACkrTzxX]] [[-R|-S] -s News_dir] [-cuvZ] [-4|-6] [-o|-w|-N|-M address] [-D debug_level] [-F filter_file] [-G article_limit] [-f newsrc_file] [-g server[:port]] [-L Message-ID] [-m Mail_dir] [-p port] [-t timeout] [-I index_dir] [newsgroup[,...]]]

DESCRIPTION
tin is a full-screen easy to use Usenet newsreader. It can read news locally (e.g., /var/spool/news) or remotely (rtin or tin -r option) via an NNTP (Network News Transport Protocol, RFC 3977) or NNTPS (RFC 8143) server. It will automatically utilize NOV newsoverview(5) style index files if available locally or via the NNTP [X]OVER command (RFC 2980, RFC 3977).

tin has four separate levels of operation: Selection level, Group level, Thread level and Article level. Use the Help ('h') command to view a list of the commands available at a particular level.

On startup tin will show a list of the newsgroups found in ${TIN_HOMEDIR:-"$HOME"}/.newsrc. An arrow '→' or highlighted bar will point to the first newsgroup. Move to a group by using the terminal arrow keys (terminal dependent) or Down ('j') and Up ('k'). Use PgUp/PgDn (terminal dependent) or PageUp ('^U') (CTRL-U) and PageDown ('^D') (CTRL-D) to page up/down. Enter a newsgroup by pressing '<CR>'.

The GroupNextUnreadArtOrGrp ('<TAB>') key enters the next newsgroup with unread articles.

EXIT STATUS

0   Successful program execution. No unread news available in batch mode.

1   Usage, syntax, configuration file or network error.

2   Unread news available (batch mode (''-Z'') only).

3   NNTP error.

OPTIONS

-4  Force connecting via IPv4 to the remote NNTP server. Only available when built with IPv6 support.

-6  Force connecting via IPv6 to the remote NNTP server. Only available when built with IPv6 support.

-a  Toggle ANSI color (default is off).

-A  Force authentication on initial connect. Only available when reading via NNTP. See also ${TIN_HOMEDIR:-"$HOME"}/.newsauth in tin(5).

-c  Create/update index files for every group in ${TIN_HOMEDIR:-"$HOME"}/.newsrc or file specified by the ''-f'' option and mark all articles as read.

-C  Use COMPRESS NNTP extension (RFC 8054) if available. See also nntp_read_timeout_secs, ''-t'' and the "SECURITY" and "BUGS" section.

-d  Don't load newsgroup descriptions and servers message of the day (interactive mode).

-D debug-level
    Enter debug-level, the levels can specified via number (should be avoided as it will be removed in the future) or name (case insensitive) as listed below. Use comma to give multiple levels, any combinations are allowed (e.g., ''-D GNKSA,2,NNTP''). If removal is requested it will be performed at startup and on normal termination (that is the files are only available while tin is running).
    1 | NNTP | NNTPS |
    2 | FILTER | ARTS |
    4 | NEWSRC | BITMAP |
    8 | THREADING | REFS |
    16 | MEMORY | MALLOC |
    32 | ATTRIBUTES |  |
    64 | MISC | GNKSA | ACTIVE
    127 | ALL | EVERYTHING |
    128 | REMOVE | DELETE |
    For NNTP-level ''-v'' controls the verbosity of the output. Depending on the debug-level various files may be written to $TMPDIR and/or on screen output may be given. See also the "SECURITY" section!

-f file
    Use the specified file of subscribed to newsgroups in place of ${TIN_HOMEDIR:-"$HOME"}/.newsrc or a file specified via ${TIN_HOMEDIR:-"$HOME"}/.tin/newsrctable.

-F file
    Use the specified filter file instead of ${TIN_HOMEDIR:-"$HOME"}/.filter.

-g server[:port]
    Use the server[:port] and newsrc specified in ${TIN_HOMEDIR:-"$HOME"}/.tin/newsrctable. Only available when reading via NNTP. If you want to give a port with a plain IPv6 address, the address must be enclosed in square brackets.

-G article-limit
    Limit the number of articles/group to retrieve from the server. If article-limit is > 0 not more than the last article-limit articles/group are fetched from the server. If article-limit is < 0 tin will start fetching articles from your first unread minus absolute value of article-limit. Default is 0, which means no limit.

-h  Help listing all command-line options.

-H  Brief introduction to tin that is also shown the first time it is started.

-I dir
    Directory in which to store newsgroup index files. Default is ${TIN_INDEX_NEWSDIR:-"${TIN_HOMEDIR:-"$HOME"}/.tin"}/.news. This option has no effect if tin retrieves its index files via NNTP and cache_overview_files is turned off.

-k  Skip the certificate verification step for NNTPS connections and proceed without checking. This option implies ''-T''. See also the "SECURITY" section.

-l  Get number of articles per group from the ${TIN_LIBDIR:-NEWSLIBDIR}"/"${TIN_ACTIVEFILE:-active} file. If reading via NNTP this is done with the LIST command (RFC 3977). This might result in incorrect article counts but is usually faster than the default which is to read the ${TIN_LIBDIR:-NEWSLIBDIR}"/"${TIN_ACTIVEFILE:-active} file (either directly or via LIST) and then check the article count via NNTP GROUP command (RFC 3977) ''-ln''. If reading via NNTP and LIST COUNTS (RFC 6048) is available that is used instead as it gives more accurate article counts.

-L  Show the message with the given Message-ID if available. Only available when reading via NNTP.

-m dir
    Mailbox directory to use. Default is ${TIN_HOMEDIR:-"$HOME"}/Mail.

-M user
    Mail unread articles to specified user for later reading. For more information read section "AUTOMATIC MAILING AND SAVING NEW NEWS".

-n  Only load groups from the ${TIN_LIBDIR:-NEWSLIBDIR}"/"${TIN_ACTIVEFILE:-active} file that are subscribed to in the user's ${TIN_HOMEDIR:-"$HOME"}/.newsrc. This allows a noticeable speed up when connecting via a slow line, but tin may not be able to detect which groups are moderated. See also ''-l''.

-N  Mail unread articles to yourself for later reading. For more information read section "AUTOMATIC MAILING AND SAVING NEW NEWS".

-o  Quick post all postponed articles and exit. In order for this to be really quick, it should be used with ''-n'' if possible.

-p port
    Port to use if reading via NNTP (default is 119 or 563 if NNTPS is enabled, see ''-T''). This also overrides the environment variables $NNTPPORT and $NNTPSPORT if set. Only available when reading via NNTP.

-q  Don't check for new newsgroups and skip loading the servers message of the day.

-Q  Quick start. Start tin as quickly as possible. Currently this is equivalent to ''-dnq''. See also the ''-C'' and ''-G'' command-line options.

-r  Read news remotely from the default NNTP server specified in the environment variable $NNTPSERVER or contained in the file /etc/nntpserver.

-R  Read news saved by the ''-S'' option.

-s dir
    Save/read articles to/in directory. Default is ${TIN_HOMEDIR:-"$HOME"}/News.

-S  Save unread articles for later reading by the ''-R'' option. For more information read section "AUTOMATIC MAILING AND SAVING NEW NEWS".

-t timeout
    Override the nntp_read_timeout_secs setting. Default is 120 seconds, allowed maximum is 16383.

-T  Enable NNTPS (NNTP over TLS). This also overrides the environment variable $NNTPSPORT if set. Only available when reading via NNTP.

-u  Create/update index files for every group in ${TIN_HOMEDIR:-"$HOME"}/.newsrc or file specified by the ''-f'' option. This option is disabled if tin retrieves its index files via an NNTP server and cache_overview_files is turned off.

-v  Verbose mode for ''-c'', ''-D'', ''-M'', ''-N'', ''-S'', ''-u'', ''-V'' and ''-Z'' options. Can be used multiple times to increase verbosity.

-V  Print version information and compilation options.

-w  Quick mode to post an article and then exit. This option implies ''-d''. In order for this to be really quick, it should be used with ''-n'' if possible.

-x  No-posting mode. You cannot post articles if you use this option.

-X  No overwrite mode. ${TIN_HOMEDIR:-"$HOME"}/.newsrc and files in ${TIN_HOMEDIR:-"$HOME"}/.tin will not be overwritten but may be created if they don't exist. Should be used with ''-x'' if possible.

-z  Only start tin if there is any new/unread news. If there is news tin will position cursor at first group with unread news. Useful for putting in login file.

-Z  Check if there is any new/unread news and exit with appropriate status. If the ''-v'' option is specified the number of unread articles in each group is printed. An exit code 0 indicates no news, 1 that an error occurred and 2 that new/unread news exists. Useful for writing scripts.

tin can also dynamically change its options by the OptionMenu ('M') command. Any changes are written to ${TIN_HOMEDIR:-"$HOME"}/.tin/tinrc. For more information see section "GLOBAL OPTIONS MENU AND TINRC CONFIGURABLE VARIABLES" and tin(5).

A list of groups can be specified after the other command-line options. This can be useful if you wish to yank in or subscribe to a hand-picked subset of the active newsgroups. See the section "NEWSGROUP LISTS & WILDCARDS" for the types of pattern that tin understands.

If you specify a single group-name, or a wildcard that matches a single group, then you will automatically enter that group. Otherwise the normal group selection screen will appear, but with all the matching groups present too, as though you had yanked just those groups in.

With the ''-w'' flag a given group-name is used as default group to post to. If more than one group or a wildcard is specified only the first group respectively the first group that matches is used.

Once you use SelectYankActive ('y') to yank in all active groups, or SelectToggleReadDisplay ('r') to toggle the read/unread status, then the command-line groups will be gone. You can use SelectSyncWithActive ('Y') to reread the ${TIN_LIBDIR:-NEWSLIBDIR}"/"${TIN_ACTIVEFILE:-active} file and get them back.

NB: With the ''-n'' flag, if reading via NNTP it may happen that only unsubscribed groups in the ${TIN_HOMEDIR:-"$HOME"}/.newsrc file (or the newsrc-file given by the ''-f'' command-line switch or via ${TIN_HOMEDIR:-"$HOME"}/.tin/newsrctable) can be matched.

Command-line options have higher priority than attributes and tinrc options. Thus, command-line option takes precedence over configured values with the single exception that if a port is given for the newsserver in ${TIN_HOMEDIR:-"$HOME"}/.tin/newsrctable it will override any port given on the command-line. The order of command-line options is not important. If they are mutual exclusive the one with the highest priority will be chosen and a warning may be given.

USAGE

  NEWS ADMINISTRATION
Maintaining Netnews on large networks of machines can be a pretty time-consuming job as I discovered when I was given the job of maintaining our news system and news users.

A user starting tin for the first time can be automatically subscribed to a list of newsgroups that are deemed appropriate by the news administrator. The subscriptions file should be created in your news lib directory (i.e., ${TIN_LIBDIR:-NEWSLIBDIR}/subscriptions) and should be world readable. If you read news via NNTP, then your news server must support the LIST SUBSCRIPTIONS command. It is part of the NNTP List Extensions (RFC 6048) and all modern servers should understand it.

  SCREEN FORMAT
tin has four separate levels of operation: Selection level, Group level, Thread level and Article level.

At the Selection level the title displays (the name of the news server (with a "[T]"- or "[k]"-suffix if reading via NNTPS (insecurely)) and) the number of subscribed groups (containing new unread articles). The newsgroups are displayed in the middle of the screen usually with the number of unread articles displayed on the same line in front, but it can be customized via select_format.

->M    1     2  comp.security.announce  Announcements from the CERT abou
  M    2     1  news.admin.announce     Announcements for news adminstra
       3    22  news.software.misc      News-related software other than
       4  1475  news.software.nntp      The Network News Transfer Protoc
  X    5   124  news.software.readers   Discussion of software used to r

There may also be a character prefixing the line. An explanation follows:

u   This group is unsubscribed. To see only your subscribed groups use the SelectToggleReadDisplay ('r') or SelectYankActive ('y') toggle keys.

M   This is a moderated group. Any posts you make will have to be approved by the group administrator before it will be made public. tin will ask for confirmation before you post to a moderated group.

N   This is a new newsgroup which has been created since you last used tin. New newsgroups are not subscribed to by default (However, see the $AUTOSUBSCRIBE / $AUTOUNSUBSCRIBE environment variables). Subscribe to it in the normal way if you wish the group to continue to appear in your Selection Menu. Simply ignore new newsgroups and they will be gone the next time you start tin. You will have to yank in all the groups to find them in a later session.

D   This group no longer exists. If you no longer wish to see this group then unsubscribe from it in the normal way. This flag will only appear if you have set strip_bogus to "Mark with D on selection screen" in the Options Menu.

X   You may no longer make posts to this group. Often a group will be superseded by a more appropriately named one.

=   This group has been renamed and you may no longer post to it. If you do, then you will receive an error from your news server telling you the correct group to post to.

At the Group level the title contains the name of the group, the number of conversation threads, the abbreviated threading method (thread_articles), the limit of articles to get (if set; getart_limit), the total number of (unread) articles (art_marked_read or art_marked_unread), the number of hot articles art_marked_selected, the number of read hot articles (if any; art_marked_read_selected), the number of recent articles (art_marked_recent) and the number of killed articles (art_marked_killed). I.e.:

alt.sources (5B -50/23+ 0* 3o 0K)

The characters after the numbers depend on configuration and if the currently show_only_unread_arts is active or not. Some numbers could be missing if the specific option is not enabled. It might also contain an 'M', 'X' or '=' (see above; may not work with the ''-n'' command-line switch) if the group is moderated, set to no posting or postings to it get redirected.

If a thread has unread articles it is marked with art_marked_unread in front of the total number of articles in the thread. If there are recent articles within the thread it might be marked with art_marked_recent in front of the total number of articles in the thread — this is controlled by the recent_time option. If a thread has hot articles in it (see also section "FILTERING ARTICLES") it's marked with art_marked_selected in front of the total number of articles in the thread. The display can be customized via group_format.

de.admin.net-abuse.announce (11B 13+ 1* 1o 0K) M
->   1   +   3  108 bincancels in de.talk.sex        Christopher Lueg <l
     2   +       69 EMP/ECP gecancelt. xynx. BI= 10  Henning Weede <hwee
     3   o       93 EMP gecancelt. SouthBeach/Palms  Henning Weede <hwee
     4   *      368 <1997-11-12> Fremdcancel-FAQ     Thomas Roessler <ro

At the Thread level the screen usually (depends on the threading method used) looks like this, but can be customized via thread_format:

->   1      [   7]  What is this funny tree in the thre Robert F. Simmig
     2      [  12]  +->                                 Sephan Wagner <s
     3      [ 230]  | `->Tin thread-level (was: What is Bob Johnson <bob
     4      [  22]  `->tin threading menu               Brian Richardson

At the Article level the page header has the following format:

Sun, 28 Dec 1997 21:21:01   de.admin.news.groups       Thread   20 of 86
Lines 50   Re: EINSPRUCH zu RESULT:de.comm.mobil.ALL   Article  47 of 59
Urs Janssen <urs@akk.org>         at Arbeitskreis Kultur und Kommunikati
article-body

The look of the Selection, Group and Thread level can be customized. See the section "CUSTOMIZING THE SCREEN FORMAT".

  COMMON MOVING KEYS
This table shows the common keys used for moving around all levels within tin.
    	ANSI/vt100	Other Terminals
    Beg. of list/article	Home	FirstPage (^)
    End of list/article	End	LastPage ($)
    Page Up	PgUp	PageUp (u, ^U or ^B)
    Page Down	PgDn	PageDown (^D or ^F or <SPACE>)
    Line Up	Up arrow	Up (k or ^P)
    Line Down	Down arrow	Down (j or ^N)

  COMMON EDITING COMMANDS
An emacs(1) style editing package allows the easy editing of input strings. A history list allows the easy reuse of previously entered strings. In addition to the cursor keys, the following commands are available when editing a string:

^A, ^E
    move to beginning or end of line, respectively.

^F, ^B
    non-destructive move forward or back one location, respectively.

^D  delete the character currently under the cursor, or send EOF if no characters in the buffer.

^H, <DEL>
    delete character left of the cursor.

^K  delete from cursor to end of line.

^P, ^N
    move through history, previous and next, respectively.

^L, ^R
    redraw the current line.

<CR>
    places line on history list if non-blank, appends newline and returns to the caller.

<ESC>
    aborts the present editing operation.

  GLOBAL COMMANDS
The following commands are available at all 4 menu levels and always have the same effect.

ShellEscape '!'
    Shell escape. ShellEscape by itself will launch a shell, ShellEscape <command> will run an external <command>. This facility may have been disabled by the System Administrator.

ToggleColor '&'
    Toggle use of ANSI color.

RedrawScr '^L'
    Redraw the current screen.

ScrollUp '<'
    Scroll screen up by one line.

ScrollDown '>'
    Scroll screen down by one line.

Postponed 'O' '^O'
    Reload postponed article. If your system blocks the Postponed key you must quote it by pressing '^V' (CTRL-V) first. The postpone-menu offers the following actions: PromptYes ('y') = reload and spawn editor; PostponeOverride ('Y') = post article (without spawning editor); PostponeAll ('A') = post all postponed articles (without spawning editor); PromptNo ('n') = skip this article; Quit ('q') = quit postponed menu. Currently there is no 'simple' way to delete a postponed article from the postponed-file, you have to use the following command sequence instead: reload it with Postponed, enter editor with PromptYes ('y'), quit editor, discard posting with Quit ('^O''y''q'). See also ''-o'' command-line switch.

Help 'h'
    Help screen of commands available on the current menu. You can use SearchSubjF ('/'), SearchSubjB ('?') and SearchRepeat ('\') to search on this screen. Quit ('q') returns to the menu.

ToggleHelpDisplay 'H'
    Toggle the display of help mini menu at the bottom of the screen and posting etiquette after composing an article (beginner_level).

DisplayPostHist 'W'
    List articles posted by user. The date posted, the newsgroup and the subject are listed. See the section "POSTING HISTORY LISTING" for more information.

Version 'v'
    Print tin version information.

  NEWSGROUP SELECTION COMMANDS

4   Select group 4.

MarkAncientArtRead '^E'
    Mark all articles in the current group older than a given time in days or a date string formatted according to RFC 5322 as read.

SelectResetNewsrc '^R'
    Reset ${TIN_HOMEDIR:-"$HOME"}/.newsrc file. This will destroy all records of which articles have been read, so use this carefully.

SetRange '#'
    Choose a range of articles to be affected by the next command. See the section "RANGES" for more information.

SelectSortActive '.'
    Sort the list of newsgroups.

SearchRepeat '\'
    Repeat the previous search.

SearchSubjF '/'
    Search for a group by name and description (if displayed).

SearchSubjB '?'
    Backward search through the group names and descriptions.

SelectReadGrp '^J' '<CR>'
    Read current group.

SelectEnterNextUnreadGrp '<TAB>' 'n'
    Enter next group with unread news. Will wrap around to the beginning of the group selection list looking for unread groups.

Catchup 'c'
    Make current group as all read [after confirmation] and move to the next group in the group selection list.

CatchupNextUnread 'C'
    Mark current group as all read [after confirmation] and enter the next unread group in the group selection list.

SelectToggleDescriptions 'd'
    Toggle display to show just the group name or the group name and the group descriptions.

EditFilter 'E'
    Edit the filter file and reload it afterward.

SelectGoto 'g'
    Choose a new group by name. This command can be used to access any group, even those not currently yanked in.

ToggleInfoLastLine 'i'
    Toggle the display of the description of the current newsgroup in the last line. This will not be available if tin was started with the ''-d'' option.

ToggleInverseVideo 'I'
    Toggle inverse video.

ConnectionInfo 'J'
    Show details about current connection.

LookupMessage 'L'
    Look up article by ''Message-ID:''. If none of the groups listed in the ''Newsgroups:''-header of the referenced article is available, just the contents of the ''Newsgroups:''-header will be displayed in the last line. At this level this command only works if reading via NNTP and the server supports [X]HDR (RFC 2980, RFC 3977) or XPAT (RFC 2980).

SelectMoveGrp 'm'
    Move the current group within the group selection list. By entering '1' the group will become the first displayed group in the list, by entering '8' the eighth group in the list etc. By entering '$' the group will be the last group displayed.

OptionMenu 'M'
    User configurable options menu (for more information see section "GLOBAL OPTIONS MENU AND TINRC CONFIGURABLE VARIABLES").

SelectNextUnreadGrp 'N'
    Positions the cursor on the next group with unread articles in it.

Quit 'q'
    Quit tin — ask the user to confirm if confirm_choice is set accordingly.

QuitTin 'Q'
    Quit tin — don't ask the user to confirm.

SelectToggleReadDisplay 'r'
    Toggle display of all subscribed to groups and just those groups containing unread articles. Command has no effect if groups were specified on the command-line when tin was started.

BugReport 'R'
    Mail a bug report or comment to <tin-bugs@tin.org>. This is the best way of getting bugs fixed and features added/changed.

SelectSubscribe 's'
    Subscribe to current group.

SelectSubscribePat 'S'
    Subscribe to groups matching user specified pattern. See the section "NEWSGROUP LISTS & WILDCARDS" for the types of pattern that tin understands.

SelectUnsubscribe 'u'
    Unsubscribe to current group. This can be used to remove bogus groups. See strip_bogus in the "GLOBAL OPTIONS MENU AND TINRC CONFIGURABLE VARIABLES" section.

SelectUnsubscribePat 'U'
    Unsubscribe to groups matching user specified pattern. See the section "NEWSGROUP LISTS & WILDCARDS" for the types of pattern that tin understands.

Post 'w'
    Post an article to current group. If posting fails for some reason, you'll get the chance to PostEdit ('e') the article again, PostPostpone ('o') it for later processing (see also ''-o'' command-line switch) or discard it via Quit ('q').

SelectQuitNoWrite 'X'
    Quit tin without saving any changes to the configuration.

SelectYankActive 'y'
    Yanks in all groups. Toggles the displayed groups between all the groups in the ${TIN_LIBDIR:-NEWSLIBDIR}"/"${TIN_ACTIVEFILE:-active} file and just those that are subscribed to in ${TIN_HOMEDIR:-"$HOME"}/.newsrc.

SelectSyncWithActive 'Y'
    Reread the ${TIN_LIBDIR:-NEWSLIBDIR}"/"${TIN_ACTIVEFILE:-active} file to see if any new news has arrived since starting tin.

SelectMarkGrpUnread 'z' 'Z'
    Mark all articles in the current group as unread.

  GROUP INDEX COMMANDS
All searches in this level are limited to unread articles if in show_only_unread_arts mode. GroupToggleReadUnread ('r') can be use toggle the setting right before/after the search.

4   Select article 4.

MenuFilterSelect '^A'
    Auto select article(s) using a menu. Read the section "FILTERING ARTICLES" for more information.

MarkAncientArtRead '^E'
    Mark all articles in the current group older than a given time in days or a date string formatted according to RFC 5322 as read.

MenuFilterKill '^K'
    Kill article(s) using a menu. Read the section "FILTERING ARTICLES" for more information.

MarkFeedRead '^X'
    Mark current article, thread, range, auto-selected (hot) articles, articles matching pattern or tagged articles as read. A prompt asks which type should be marked.

MarkFeedUnread '^W'
    Mark current article, thread, range, auto-selected (hot) articles, articles matching pattern or tagged articles as unread. A prompt asks which type should be marked.

SetRange '#'
    Choose a range of articles to be affected by the next command. See the section "RANGES" for more information.

LastViewed '-'
    Re-enter the last message that was viewed.

SearchRepeat '\'
    Repeat the previous search.

SearchSubjF '/'
    Search forward for specified subject.

SearchSubjB '?'
    Search backward for specified subject.

GroupSelThd '*'
    Select current thread for later processing.

GroupDoAutoSel '+'
    Selects all threads in current group. It is a shortcut for calling GroupSelPattern with a pattern of ''*''.

GroupToggleThdSel '.'
    Toggle selection of current thread. If at least one unread article, (but not every unread article) in the current thread is selected, then all unread articles become selected.

GroupSelThdIfUnreadSelected ';'
    For each thread in current group, if it at least one unread article is selected, all unread articles become selected. This is useful for auto-selection on author where reader wants to see entire thread.

GroupSelPattern '='
    Prompts for a pattern with which to match on. All threads whose subjects match the pattern will be marked selected. A pattern of ''*'' will match all subjects. Entering just '<CR>' will reuse the last pattern that was entered.

GroupReverseSel '@'
    Reverse all selections on all articles.

GroupUndoSel '~'
    Undo all selections on all articles. It clears the toggle effect of GroupMarkUnselArtRead ('X') command. Thus after first doing a GroupMarkUnselArtRead, one can then do GroupUndoSel to reset articles. Thus, one can iteratively whittle down uninteresting threads.

Pipe '|'
    Pipe current article / thread / auto-selected (hot) articles / articles matching pattern / tagged articles into command. See the section "MAILING PIPING PRINTING REPOSTING AND SAVING ARTICLES" for more information.

QuickFilterSelect '['
    Auto select article(s) with a single key [after confirmation]. The defaults used for selection are based upon the following four tinrc config variables: default_filter_select_case, default_filter_select_expire, default_filter_select_global and default_filter_select_header. Read the section "GLOBAL OPTIONS MENU AND TINRC CONFIGURABLE VARIABLES" for a full explanation of these variables and "FILTERING ARTICLES" for more information on filtering.

QuickFilterKill ']'
    Kill article(s) with a single key [after confirmation]. The defaults used for killing are based upon the following four tinrc config variables: default_filter_kill_case, default_filter_kill_expire, default_filter_kill_global and default_filter_kill_header. Read the section "GLOBAL OPTIONS MENU AND TINRC CONFIGURABLE VARIABLES" for a full explanation of these variables and "FILTERING ARTICLES" for more information on filtering.

GroupReadBasenote '^J' '<CR>'
    Read current article.

GroupNextUnreadArtOrGrp '<TAB>'
    View next unread article or group.

SearchAuthF 'a'
    Author forward search. This searches for articles with a specific ''From:'' line.

SearchAuthB 'A'
    Author backward search. Otherwise, see SearchAuthF ('a') above.

SearchBody 'B'
    Search the body of all articles in group (can be slow). You can abort the search using Quit ('q').

Catchup 'c'
    Mark all articles as read [after confirmation] then return to the group selection list. Move cursor to next group.

CatchupNextUnread 'C'
    Mark all articles as read [after confirmation] and enter the next group with unread news.

GroupToggleSubjDisplay 'd'
    Cycle the display of the author through all the possible options for the tinrc variable show_author.

GroupCancel 'D'
    Cancel (delete) or supersede (overwrite) the current article. It must have been posted by the same user. The cancel message can be seen in the newsgroup 'control' or 'control.cancel'.

EditFilter 'E'
    Edit the filter file and reload it afterward.

GroupGoto 'g'
    Choose a new group by name. This command can be used to access any group, even those not currently yanked in.

GroupToggleGetartLimit 'G'
    Toggle article/group limit.

ToggleInfoLastLine 'i'
    Display the subject of the first article in the current thread in the last line.

ToggleInverseVideo 'I'
    Toggle inverse video.

ConnectionInfo 'J'
    Show details about current connection.

GroupMarkThdRead 'K'
    Mark article/thread as read and move onto the next unread article/thread. If a range of articles/threads is set, the range will be marked as read instead of the current article/thread. When tagged articles/threads are present, a prompt asks how to proceed.

GroupListThd 'l'
    Open the thread under the current cursor position.

LookupMessage 'L'
    Look up article by ''Message-ID:''. If not reading via NNTP or the server neither supports [X]HDR (RFC 2980, RFC 3977) nor XPAT (RFC 2980), only the IDs in the current group are searched.

GroupMail 'm'
    Mail current article / thread / auto-selected (hot) articles / articles matching pattern / tagged articles to someone. See the section "MAILING PIPING PRINTING REPOSTING AND SAVING ARTICLES" for more information.

OptionMenu 'M'
    User configurable options menu (for more information see section "GLOBAL OPTIONS MENU AND TINRC CONFIGURABLE VARIABLES").

GroupNextGroup 'n'
    Go to next group.

GroupNextUnreadArt 'N'
    Go to the next unread article.

Print 'o'
    Send current article / thread / auto-selected (hot) articles / articles matching pattern / tagged articles to printer. See the section "MAILING PIPING PRINTING REPOSTING AND SAVING ARTICLES" for more information.

GroupPrevGroup 'p'
    Go to previous group.

GroupPrevUnreadArt 'P'
    Go to previous unread article.

Quit 'q'
    Return to previous level.

QuitTin 'Q'
    Quit tin — don't ask the user to confirm.

GroupToggleReadUnread 'r'
    Toggle the display between all articles and unread articles.

BugReport 'R'
    Mail a bug report or comment to <tin-bugs@tin.org>. This is the best way of getting bugs fixed and features added/changed.

GroupSave 's'
    Save current article / thread / auto-selected (hot) articles / articles matching pattern / tagged articles. See the section "MAILING PIPING PRINTING REPOSTING AND SAVING ARTICLES" for more information.

GroupAutoSave 'S'
    Save marked articles automatically without further prompting.

GroupTag 't'
    Toggle tag-status of current article / thread for GroupMail ('m') / Pipe ('|') / Print ('o') / GroupSave ('s') / GroupRepost ('x').

GroupTagParts 'T'
    Automatically tag/untag all the parts of the current multi-part message in order.

GroupToggleThreading 'u'
    Cycle the threading mode through no threading, threading by subject, threading by references, threading on both subject and references, group multipart articles into a thread (''Subject:'' based).

GroupUntag 'U'
    Untag all articles that were tagged.

Post 'w'
    Post an article to the current group. If posting fails for some reason, you'll get the chance to edit the article again via PostEdit ('e'), postpone it for later processing via PostPostpone ('o') (see also ''-o'' command-line switch) or discard it via Quit ('q').

GroupRepost 'x'
    Repost an already posted article / thread / auto-selected (hot) articles / articles matching pattern / tagged articles to another newsgroup(s). Useful for reposting from global to local newsgroups. Do not use this to crosspost your own articles.

GroupMarkUnselArtRead 'X'
    Mark all unread articles that have not been selected as read, redraw screen to reflect changes and put index at the first thread to begin reading. Pressing GroupMarkUnselArtRead ('X') again will toggle back to the way it was before. See GroupUndoSel ('~') command for clearing the toggle effect, leaving the group will also clear the toggle effect and make the changes permanent.

MarkArtUnread 'z'
    Mark current article as unread.

MarkThdUnread 'Z'
    Mark current thread as unread. If a range of threads is set, the range will be marked as unread instead of the current thread. When tagged threads are present, a prompt asks how to proceed.

  THREAD LISTING COMMANDS

4   Select article 4 within thread.

MenuFilterSelect '^A'
    Auto select article(s) using a menu. Read the section "FILTERING ARTICLES" for more information.

MenuFilterKill '^K'
    Kill article(s) using a menu. Read the section "FILTERING ARTICLES" for more information.

MarkFeedRead '^X'
    Mark current article, thread, range, auto-selected (hot) articles, articles matching pattern or tagged articles as read. A prompt asks which type should be marked.

MarkFeedUnread '^W'
    Mark current article, thread, range, auto-selected (hot) articles, articles matching pattern or tagged articles as unread. A prompt asks which type should be marked.

SetRange '#'
    Choose a range of articles to be affected by the next command. See the section "RANGES" for more information.

LastViewed '-'
    Re-enter the last message that was viewed.

SearchRepeat '\'
    Repeat the previous search.

SearchSubjF '/'
    Search forward for specified subject.

SearchSubjB '?'
    Search backward for specified subject.

ThreadSelArt '*'
    Select current thread for later processing.

ThreadToggleArtSel '.'
    Toggle selection of current article.

ThreadReverseSel '@'
    Reverse article selections.

ThreadUndoSel '~'
    Undo all selections on current thread.

Pipe '|'
    Pipe current article / thread / auto-selected (hot) articles / articles matching pattern / tagged articles into command. See the section "MAILING PIPING PRINTING REPOSTING AND SAVING ARTICLES" for more information.

ThreadReadArt '^J' '<CR>'
    Read current article within thread.

ThreadReadNextArtOrThread '<TAB>'
    View next unread article within thread.

SearchAuthF 'a'
    Author forward search. This searches for articles with a specific ''From:'' line. The search will wrap over into the next thread if nothing is found in the current one.

SearchAuthB 'A'
    Author backward search. Otherwise, see SearchAuthF ('a') above.

SearchBody 'B'
    Search the body of all articles in group (can be slow). You can abort the search using Quit ('q').

Catchup 'c'
    Mark thread as read [after confirmation] and return to the group index page. Move cursor to next thread.

CatchupNextUnread 'C'
    Mark thread as read [after confirmation] and enter the next thread containing unread news.

ThreadToggleSubjDisplay 'd'
    Cycle the display of the author through all the possible options for the tinrc variable show_author.

ThreadCancel 'D'
    Cancel (delete) or supersede (overwrite) the current article. It must have been posted by the same user. The cancel message can be seen in the newsgroup 'control' or 'control.cancel'.

EditFilter 'E'
    Edit the filter file and reload it afterward.

ThreadFollowupQuote 'f'
    Post a followup to the current article with a copy of the article included.

ThreadFollowup 'F'
    Post a followup to the current article without a copy of the article included.

ToggleInfoLastLine 'i'
    Display the subject of the current article in the last line.

ToggleInverseVideo 'I'
    Toggle inverse video.

ConnectionInfo 'J'
    Show details about current connection.

ThreadMarkArtRead 'K'
    Mark article as read and move onto the next unread article. If a range of articles is set, the range will be marked as read instead of the current article. When tagged articles are present, a prompt asks how to proceed.

LookupMessage 'L'
    Look up article by ''Message-ID:''. If not reading via NNTP or the server neither supports [X]HDR (RFC 2980, RFC 3977) nor XPAT (RFC 2980), only the IDs in the current group are searched.

ThreadMail 'm'
    Mail current article / thread / auto-selected (hot) articles / articles matching pattern / tagged articles to someone. See the section "MAILING PIPING PRINTING REPOSTING AND SAVING ARTICLES" for more information.

Print 'o'
    Send current article / thread / auto-selected (hot) articles / articles matching pattern / tagged articles to printer. See the section "MAILING PIPING PRINTING REPOSTING AND SAVING ARTICLES" for more information.

Quit 'q'
    Return to previous level.

QuitTin 'Q'
    Quit tin — don't ask the user to confirm.

BugReport 'R'
    Mail a bug report or comment to <tin-bugs@tin.org>. This is the best way of getting bugs fixed and features added/changed.

ThreadSave 's'
    Save current article / thread / auto-selected (hot) articles / articles matching pattern / tagged articles. See the section "MAILING PIPING PRINTING REPOSTING AND SAVING ARTICLES" for more information.

ThreadAutoSave 'S'
    Save marked articles automatically without further prompting.

ThreadTag 't'
    Toggle tag status of current article for mailing, piping, printing, saving or reposting.

ThreadTagParts 'T'
    Automatically tag/untag all the parts of the current multi-part message in order.

ThreadUntag 'U'
    Untag all tagged threads.

Post 'w'
    Post an article to the current group. If posting fails for some reason, you'll get the chance to edit the article again via PostEdit ('e'), postpone it for later processing via PostPostpone ('o') (see also ''-o'' command-line switch) or discard it via Quit ('q').

MarkArtUnread 'z'
    Mark current article in thread as unread. If a range of articles is set, the range will be marked as unread instead of the current article. When tagged articles are present, a prompt asks how to proceed.

MarkThdUnread 'Z'
    Mark all articles in thread as unread.

  ARTICLE VIEWER COMMANDS

0   Read the first (base) article in this thread.

4   Read response 4 in this thread.

MenuFilterSelect '^A'
    Auto select article(s) using a menu. Read the section "FILTERING ARTICLES" for more information.

PageReplyQuoteHeaders '^E'
    Reply through mail to the author of the current article with a copy of the article with all headers included.

PagePGPCheckArticle '^G'
    Perform pgp(1) / gpg(1) operations on article. This expects inline pgp (RFC 9580) and not MIME pgp (RFC 3156).

PageToggleRaw '^H'
    Toggles the display mode (raw including all headers vs. cooked).

MenuFilterKill '^K'
    Kill article(s) using a menu. Read the section "FILTERING ARTICLES" for more information.

PageToggleTabs '^T'
    Toggle the TAB width between 4 and 8 characters.

PageFollowupQuoteHeaders '^W'
    Post a followup to the current article with a copy of the article with all headers included.

PageToggleTex2iso '"'
    Toggle TeX to ISO decoding for current article. The default behavior is taken from the tex2iso_conv variable in the tinrc file.

PageToggleAllHeaders '*'
    Toggles the display of all headers vs. headers in news_headers_to_display.

PageArticleInfo '''
    Detailed MIME information of the article.

PageToggleRot '%'
    Toggle ROT-13 decoding for this article.

PageToggleInlineData '('
    Toggle the display data sections outside of MIME, e.g. uuencoded or yenc data. The default behavior is taken from the hide_inline_data variable in the tinrc file.

PageReveal ')'
    The form feed character (^L) is often used to hide 'spoilers' that the reader may not initially wish to see when viewing an article. Any text after a form feed is not displayed. This key-press acts like a reveal key and turns the hidden text back on. Scrolling down will also reveal the text, scrolling up will hide it again.

LastViewed '-'
    Re-enter the last message that was viewed.

SearchRepeat '\'
    Repeat the previous search.

SearchSubjF '/'
    Forward search the text of this article.

SearchSubjB '?'
    Backward search the text of this article.

PageSkipIncludedText ':'
    Skip to the end of the next quoted text-block in this article. Quoted text is everything which matches quote_regex, quote_regex2 or quote_regex3.

PageTopThd '<'
    Go to the first article in the current thread.

PageBotThd '>'
    Go to the last article in the current thread.

PageToggleHighlight '_'
    Toggle word highlighting on/off.

PageToggleVerbatim ','
    Cycle through the various options of verbatim_handling.

Pipe '|'
    Pipe current article / thread / auto-selected (hot) articles / articles matching pattern / tagged articles into command. See the section "MAILING PIPING PRINTING REPOSTING AND SAVING ARTICLES" for more information.

QuickFilterSelect '['
    Auto select article(s) with a single key. The defaults used for selection are set based upon the following four tinrc config variables: default_filter_select_case, default_filter_select_expire, default_filter_select_global and default_filter_select_header Read the section "GLOBAL OPTIONS MENU AND TINRC CONFIGURABLE VARIABLES" for a full explanation of these variables and "FILTERING ARTICLES" for more information on filtering.

QuickFilterKill ']'
    Kill article(s) with a single key. The defaults used for killing are based upon the following four tinrc config variables: default_filter_kill_case, default_filter_kill_expire, default_filter_kill_global and default_filter_kill_header. Read the section "GLOBAL OPTIONS MENU AND TINRC CONFIGURABLE VARIABLES" for a full explanation of these variables and "FILTERING ARTICLES" for more information on filtering.

PageNextThd '^J' '<CR>'
    Go to next base article.

PageNextUnread '<TAB>'
    Go to next unread article. If the tinrc variable goto_next_unread doesn't contain PageNextUnread, then this key will first page through the current article.

SearchAuthF 'a'
    Author forward search.

SearchAuthB 'A'
    Author backward search.

SearchBody 'B'
    Search the body of all articles in group (can be slow). You can abort the search using Quit ('q').

Catchup 'c'
    Mark the current thread as read [after confirmation] and return to the previous menu. Move cursor to next item.

CatchupNextUnread 'C'
    Mark the rest of the current thread as read [after confirmation] and enter the next thread with unread articles.

PageCancel 'D'
    Cancel (delete) or supersede (overwrite) the current article. It must have been posted by the same user. The cancel message can be seen in the newsgroup 'control' or 'control.cancel'.

PageEditArticle 'e'
    Edit the current article. This is restricted to mailgroups and saved news.

EditFilter 'E'
    Edit the filter file and reload it afterward.

PageFollowupQuote 'f'
    Post a followup to the current article with a copy of the article included.

PageFollowup 'F'
    Post a followup to the current article without including a copy of the article.

PageFirstPage 'g'
    Go to the start of the article.

PageLastPage 'G'
    Go to the end of the article.

ToggleInfoLastLine 'i'
    Display the subject of the current article in the last line.

ToggleInverseVideo 'I'
    Toggle inverse video.

ConnectionInfo 'J'
    Show details about current connection.

PageKillThd 'K'
    Mark rest of thread as read and move onto the next unread thread.

PageListThd 'l'
    Show the thread menu that the current article is a part of.

LookupMessage 'L'
    Look up article by ''Message-ID:''. If not reading via NNTP or the server neither supports [X]HDR (RFC 2980, RFC 3977) nor XPAT (RFC 2980), only the IDs in the current group are searched.

PageMail 'm'
    Mail current article / thread / auto-selected (hot) articles / articles matching pattern / tagged articles to someone. See the section "MAILING PIPING PRINTING REPOSTING AND SAVING ARTICLES" for more information.

OptionMenu 'M'
    User configurable options menu (for more information see section "GLOBAL OPTIONS MENU AND TINRC CONFIGURABLE VARIABLES").

PageNextArt 'n'
    Go to the next article.

PageNextUnreadArt 'N'
    Go to the next unread article.

Print 'o'
    Send current article / thread / auto-selected (hot) articles / articles matching pattern / tagged articles to printer. See the section "MAILING PIPING PRINTING REPOSTING AND SAVING ARTICLES" for more information.

PagePrevArt 'p'
    Go to the previous article.

PagePrevUnreadArt 'P'
    Go to the previous unread article.

Quit 'q'
    Return to the previous level.

QuitTin 'Q'
    Quit tin — don't ask the user to confirm.

PageReplyQuote 'r'
    Reply through mail to the author of the current article with a copy of the article included.

PageReply 'R'
    Reply through mail to the author of the current article without including the original article.

PageSave 's'
    Save current article / thread / auto-selected (hot) articles / articles matching pattern / tagged articles. See the section "MAILING PIPING PRINTING REPOSTING AND SAVING ARTICLES" for more information.

PageAutoSave 'S'
    Save marked articles automatically without further prompting.

PageTag 't'
    Toggle tag status of current article for mailing, piping, printing, saving or reposting.

PageGroupSel 'T'
    Return to group selection level.

PageGotoParent 'u'
    Go to parent article.

PageViewUrl 'U'
    Display a list of URLs in the current article. See the section "URL LISTING" for more information.

PageViewAttach 'V'
    Display a list of attachments of the current article. See the section "ATTACHMENT LISTING" for more information.

Post 'w'
    Post an article to the current group. If posting fails for some reason, you'll get the chance to edit the article again via PostEdit ('e'), postpone it for later processing via PostPostpone ('o') (see also ''-o'' command-line switch) or discard it via Quit ('q').

PageRepost 'x'
    Repost an already posted article / thread / auto-selected (hot) articles / articles matching pattern / tagged articles to another newsgroup(s). Useful for reposting from global to local newsgroups. Do not use this to crosspost your own articles.

MarkArtUnread 'z'
    Mark article as unread.

MarkThdUnread 'Z'
    Mark the current thread as unread.

  URL LISTING
PageViewUrl ('U') displays a list of URLs in the current article. Besides the common moving keys, the following commands are available:

    UrlSelect '^J' '<CR>'
        The current URL will be prompted and opened using the url_handler. '<ESC>' or no input will skip the URL.

    SearchSubjF '/'
        URL forward search.

    SearchSubjB '?'
        URL backward search.

    SearchRepeat '\'
        Repeat the previous search.

    ShellEscape '!'
        Shell escape.

    ToggleInfoLastLine 'i'
        Toggle the display of the current URL in the last line.

    Help 'h'
        Help screen of commands available.

    ToggleHelpDisplay 'H'
        Toggle the display of help mini menu at the bottom of the screen and posting etiquette after composing an article (beginner_level).

  ATTACHMENT LISTING
PageViewAttach ('V') displays a list of attachments of the current article. Besides the common moving keys, the following commands are available:

    AttachPipe 'p'
        Pipe attachment into command.

    AttachSave 's'
        Save current attachment / tagged attachments to disk.

    AttachSelect '^J' '<CR>'
        View attachment.

    AttachTag 't'
        Tag one or more attachments for saving.

    AttachTagPattern '='
        Prompts for a pattern to match. All attachments whose name/description or content type/transfer encoding match the pattern will be tagged.

    AttachToggleTagged '@'
        Reverse tagging of all attachments.

    AttachUntag 'U'
        Untag all tagged attachments.

    SearchSubjF '/'
        Attachment forward search.

    SearchSubjB '?'
        Attachment backward search.

    SearchRepeat '\'
        Repeat the previous search.

    GlobalPipe '|'
        Pipe attachment into command. Uses the raw attachment, no decoding is done.

    ShellEscape '!'
        Shell escape.

    ToggleInfoLastLine 'i'
        Toggle the display of the name/description of the current attachment in the last line.

    Help 'h'
        Help screen of commands available.

    ToggleHelpDisplay 'H'
        Toggle the display of help mini menu at the bottom of the screen and posting etiquette after composing an article (beginner_level).

  POSTING HISTORY LISTING
DisplayPostHist ('W') displays a list of all previous posted articles stored in ${TIN_HOMEDIR:-"$HOME"}/.tin/posted. The following information is shown: a time stamp in "dd-mm-yy"-format, a single letter indicating the action which initiated the message, the group names (eventually shortened, see also abbreviate_groupname) or a mail address the message was sent to and the subject of the message. Besides the common moving keys, the following commands are available:

    PostedArticlesSelect '^J' '<CR>'
        The article with the current ''Message-ID:'' will be opened if available. Note that this requires that the ''Message-ID:'' of the article was recorded in ${TIN_HOMEDIR:-"$HOME"}/.tin/posted which may not always be the case. If using NNTP and the internal inews (inews_prog set to "--internal") and either the server proposes a ''Message-ID:'' during the POST (RFC 3977) command or tin is built to generate ''Message-ID:'' this should be the case. With an external inews (and reading from local spool) it is not.

    SearchSubjF '/'
        URL forward search.

    SearchSubjB '?'
        URL backward search.

    SearchRepeat '\'
        Repeat the previous search.

    ShellEscape '!'
        Shell escape.

    ToggleInfoLastLine 'i'
        Toggle the display of the current ''Message-ID:'' in the last line.

    Help 'h'
        Help screen of commands available.

    ToggleHelpDisplay 'H'
        Toggle the display of help mini menu at the bottom of the screen and posting etiquette after composing an article (beginner_level).

  GLOBAL OPTIONS MENU AND TINRC CONFIGURABLE VARIABLES
At startup, tin reads in the configuration files (see also tin(5)). They contain a list of variables that can be used to configure the way tin works. If it exists, the global configuration file, /etc/tin/tinrc is read. After that, the user's own configuration file is read from ${TIN_HOMEDIR:-"$HOME"}/.tin/tinrc. The global file is useful for distributing system-wide defaults to new users who have no private tinrc yet.

The variables are user configurable by editing ${TIN_HOMEDIR:-"$HOME"}/.tin/tinrc directly. Most of them can also be set in the GLOBAL OPTIONS MENU which is accessed by pressing OptionMenu ('M') at all levels. It allows the user to customize the behavior of tin. The options are saved to the file ${TIN_HOMEDIR:-"$HOME"}/.tin/tinrc when you exit tin so don't edit the file directly whilst tin is running.

In the options menu use the cursor keys in the usual way to move around. Use ConfigSelect ('^J' or '<CR>') to 'open' the option you wish to change. You will need to enter a new value or use '<SPACE>' to toggle the available options. ConfigSelect will save the new value, '<ESC>' will abort without saving changes.

As with the other menus, RedrawScr ('^L') will redraw the screen. You can use SearchSubjF ('/'), SearchSubjB ('?') and SearchRepeat ('\') to search for a specific option. Use Quit ('q') to exit the option menu and keep your changes. Use QuitTin ('Q') to exit without keeping your changes.

The options menu provides access to the attributes menu for the current group by the ConfigToggleAttrib ('<TAB>') command. Pressing ConfigToggleAttrib again toggles back to the options menu. For more information see section "ATTRIBUTES MENU AND GROUP ATTRIBUTES".

The ConfigScopeMenu ('S') command brings up the scopes menu. For more information see section "SCOPES MENU".

Finally, the ConfigServerrcMenu ('s') command brings up the serverrc menu where values from ${TIN_HOMEDIR:-"$HOME"}/.tin/$NNTPSERVER/serverrc can be changed. For more information see section "SERVERRC MENU".

Here is a full list of all the available variables. The name in round brackets is the name of the corresponding setting in ${TIN_HOMEDIR:-"$HOME"}/.tin/tinrc.

Abbreviate long newsgroup names (abbreviate_groupname)
    If ON abbreviate long newsgroup names at group selection level and article level (if necessary) like this: news.software.readers → n.software.readers → n.s.readers → n.s.r. Default is OFF.

Add posted articles to filter (add_posted_to_filter)
    If ON add posted articles which start a new thread to filter for highlighting follow-ups. Default is ON.

Insert ''User-Agent:''-header (advertising)
    Turn ON advertising in header (''User-Agent:''). Default is ON.

Skip multipart/alternative parts (alternative_handling)
    If ON strip multipart/alternative messages automatically. Default is ON.

Character to show deleted articles (art_marked_deleted)
    The character used to show that an article was deleted. Default is 'D'.

Character to show inrange articles (art_marked_inrange)
    The character used to show that an article is in a range. Default is '#'.

Character to show returning arts (art_marked_return)
    The character used to show that an article will return as an unread article when the group is next entered. Default is '-'.

Character to show selected articles (art_marked_selected)
    The character used to show that an article/thread is auto-selected (hot). Default is '*'.

Character to show recent articles (art_marked_recent)
    The character used to show that an article/thread is recent (not older than X days). See also recent_time. Default is 'o'.

Character to show unread articles (art_marked_unread)
    The character used to show that an article has not been read. Default is '+'.

Character to show read articles (art_marked_read)
    The character used to show that an article was read. Default is ' '.

Character to show killed articles (art_marked_killed)
    The character used to show that an article was killed. Default is 'K'. kill_level must be set accordingly.

Character to show read selected arts (art_marked_read_selected)
    The character used to show that an article was hot before it was read. Default is ':'. kill_level must be set accordingly.

Ask before using MIME viewer (ask_for_metamail)
    If ON tin will ask before using a MIME viewer (metamail_prog) to display MIME messages. This only occurs if a MIME viewer is set. Default is OFF.

Format string for the Attachment level (attachment_format)
    Format string tin uses for Attachment level representation. See the section "CUSTOMIZING THE SCREEN FORMAT". Default is "%t%s%e%c%d".

Send you a cc and/or bcc automatically (auto_cc_bcc)
    Automatically put your name in the ''Cc:'' (1) or ''Bcc:'' (2) field or to both (3) fields when mailing an article. Default is 'No' (0).

List thread using right arrow key (auto_list_thread)
    If ON automatically list thread when entering it using right arrow key. Default is ON.

Reconnect to server automatically (auto_reconnect)
    Default is OFF.

Save articles in batch mode (batch_save)
    If set ON articles/threads will be saved in batch mode when save ''-S'' or mail ''-M, -N'' is specified on the command line. Default is ON.

Show mini menu & posting etiquette (beginner_level)
    If set ON a mini menu of the most useful commands will be displayed at the bottom of the screen for each level. Also a short posting etiquette will be displayed after composing an article. Default is ON.

Cache NNTP overview files locally (cache_overview_files)
    If ON, create local copies of NNTP overview files. This can be used to considerably speed up accessing large groups when using a slow connection. See also "INDEX FILES" and getart_limit. Default is OFF.

Compress locally cached NNTP overview files (compress_overview_files)
    If ON, locally cached NNTP overview files (cache_overview_files) are saved in compressed form (RFC 1952). Useful to reduce local disk space used. Default is OFF.

Hash algorithm for cancel-locks (cancel_lock_algo)
    Use this hash algorithm for cancel-locks (RFC 8315). Only available when built with cancel-lock support. none disables the generation of cancel-locks. Valid values are none, sha1, sha256 and sha512. Default is sha1. See also ${TIN_HOMEDIR:-"$HOME"}/.cancelsecret in tin(5).

Catchup read groups when quitting (catchup_read_groups)
    If set ON the user is asked when quitting if all groups read during the current session should be marked read. Default is OFF.

Standard background color (col_back)
    Standard background color

Color of quoted text from external sources (col_extquote)
    Color of quoted text from external sources

Color of sender (From:) (col_from)
    Color of sender (From:)

Color of article header lines (col_head)
    Color of header-lines

Color of help text (col_help)
    Color of help pages

Color for inverse text (background) (col_invers_bg)
    Color of background for inverse text

Color for inverse text (foreground) (col_invers_fg)
    Color of foreground for inverse text

Color of status messages (col_message)
    Color of status messages in last line

Color of highlighting with _dash_ (col_markdash)
    Color of words emphasized like _this_. See also word_h_display_marks and word_highlight.

Color of highlighting with /slash/ (col_markslash)
    Color of words emphasized like /this/. See also word_h_display_marks and word_highlight.

Color of highlighting with *stars* (col_markstar)
    Color of words emphasized like *this*. See also word_h_display_marks and word_highlight.

Color of highlighting with -stroke- (col_markstroke)
    Color of words emphasized like -this-. See also word_h_display_marks and word_highlight.

Color of mini help menu (col_minihelp)
    Color of mini help menu

Color of actual news header fields (col_newsheaders)
    Color of actual news header fields

Standard foreground color (col_normal)
    Standard foreground color

Color of quoted lines (col_quote)
    Color of quoted lines

Color of twice quoted line (col_quote2)
    Color of twice quoted lines

Color of >=3 times quoted line (col_quote3)
    Color of >=3 times quoted lines

Color of response counter (col_response)
    Color of response counter. This is the text that says "Response x of y" in the article viewer.

Color of signatures (col_signature)
    Color of signatures

Color of negative score (col_score_neg)
    Color of negative score

Color of positive score (col_score_pos)
    Color of positive score

Color of urls highlight (col_urls)
    Color of urls highlight

Color of verbatim blocks (col_verbatim)
    Color of verbatim blocks

Color of article subject lines (col_subject)
    Color of article subject

Color of text lines (col_text)
    Color of text-lines

Color of help/mail sign (col_title)
    Color of help/mail sign

Which actions require confirmation (confirm_choice)
    Ask for manual confirmation to protect the user.

    •   commands Ask for confirmation before executing certain dangerous commands (e.g., Catchup ('c')). Commands that this affects are marked in this manual with '[after confirmation]'. Default is commands & quit.

    •   quit You'll be asked to confirm that you wish to exit tin when you use the Quit ('q') command.

    •   select Ask for confirmation before marking all not selected (with GroupMarkUnselArtRead ('X') command) articles as read.

Format string for display of dates (date_format)
    Format string used for date representation. A description of the different format options can be found in strftime(3). tin uses strftime(3) when available and supports most format options in its fallback code. Default is "%a, %d %b %Y %H:%M:%S".

(default_art_search)

(default_author_search)

(default_config_search)
    The last article/author/config option that was searched for.

(default_filter_days)
    Default is 28.

(default_filter_kill_case)
    Default for quick (1 key) kill filter case. ON = filter case sensitive, OFF = ignore case. Default is OFF.

(default_filter_kill_expire)
    Default for quick (1 key) kill filter expire. ON = limit to default_filter_days, OFF = don't ever expire. Default is OFF.

(default_filter_kill_global)
    Default for quick (1 key) kill filter global. ON=apply to all groups, OFF=apply to current group. Default is ON.

(default_filter_kill_header)
    Default for quick (1 key) kill filter header.

    0   ''Subject:'' (case sensitive)

    1   ''Subject:'' (ignore case)

    2   ''From:'' (case sensitive)

    3   ''From:'' (ignore case)

    4   ''Message-ID:'' & full ''References:'' line

    5   ''Message-ID:'' & last ''References:'' entry only

    6   ''Message-ID:'' entry only

    7   ''Lines:''

(default_filter_select_case)
    Default for quick (1 key) auto-selection filter case. ON=filter case sensitive, OFF=ignore case. Default is OFF.

(default_filter_select_expire)
    Default for quick (1 key) auto-selection filter expire. ON = limit to default_filter_days, OFF = don't ever expire. Default is OFF.

(default_filter_select_global)
    Default for quick (1 key) auto-selection filter global. ON=apply to all groups, OFF=apply to current group. Default is ON.

(default_filter_select_header)
    Default for quick (1 key) auto-selection filter header.

    0   ''Subject:'' (case sensitive)

    1   ''Subject:'' (ignore case)

    2   ''From:'' (case sensitive)

    3   ''From:'' (ignore case)

    4   ''Message-ID:'' & full ''References:'' line

    5   ''Message-ID:'' & last ''References:'' entry only

    6   ''Message-ID:'' entry only

    7   ''Lines:''

(default_goto_group)

(default_group_search)

(default_mail_address)

(default_move_group)

(default_pattern)

(default_pipe_command)

(default_post_newsgroups)

(default_post_subject)

(default_range_group)

(default_range_select)

(default_range_thread)

(default_repost_group)

(default_save_file)

(default_save_mode)

(default_select_pattern)

(default_shell_command)

(default_subject_search)

Don't break words when wrapping (dont_break_words)
    Do not break long lines inside a word. This applies to the body except for verbatim blocks. See also wrap_column. Default is OFF.

Draw → instead of highlighted bar (draw_arrow)
    Allows groups/articles to be selected by an arrow '→' if set ON or by a highlighted bar if set OFF. Default is OFF.

Invocation of your editor (editor_format)
    The format string used to create the editor start command with parameters. Default is '%E +%N %F' with %E=Editor, %N=Linenumber and %F=Filename (e.g., /bin/vi +7 .article). See also $VISUAL and $EDITOR under "ENVIRONMENT".

Detection of external quotes (extquote_handling)
    If ON quotes from external sources will be detected. Default is OFF.

Regex used to show external quotes (extquote_regex)
    A regular expression that will be applied when reading articles. All matching lines are shown in col_extquote. If extquote_regex is blank, then tin uses a built-in default.

Force redraw after certain commands (force_screen_redraw)
    Specifies whether a screen redraw should always be done after certain external commands. Default is OFF.

Number of articles to get (getart_limit)
    If getart_limit is > 0 not more than the last getart_limit articles/group are fetched from the server. If getart_limit is < 0 tin will start fetching articles from your first unread minus absolute value of getart_limit. Note that setting getart_limit to anything except 0 disables cache_overview_files. Default is 0, which means no limit.

Catchup group using left key (group_catchup_on_exit)
    If ON catchup group when leaving with the left arrow key. Default is ON.

Format string for the Group level (group_format)
    Format string tin uses for Group level representation. See the section "CUSTOMIZING THE SCREEN FORMAT". Default is "%n %m %R %L %s %F".

Go to the next unread article with (goto_next_unread)
    Which keys tin should accept to jump to the next unread article. Possible is any combination of PageDown and PageNextUnread. When PageDown is set, tin jumps to the next article at the end of the current one. When PageNextUnread is set, tin jumps immediately to the next article when PageNextUnread ('<TAB>') is pressed. Default is PageNextUnread.

Display none mime data as an attachment (hide_inline_data)
    If set to 'Nothing' (0) then raw data is displayed. If set to 'Complete UU/YENC' (1) then sections of uuencoded or yenc data will be shown with a single tag line showing the size and filename (much the same as a MIME attachment). If set to 'Any UU/YENC' (2) then any line that looks like uuencoded or yenc data will be folded into a tag line. This is useful when uuencoded or yenc data is split across more than one article but can also lead to false positives. If set to 'Inline PGP' (4) then any inline PGP data is hidden. If set to 'Shar' (8) then shar-archives are hidden, this should be used with care as it may hide other shell snippets and any following text as well. This setting can also be toggled in the article viewer via PageToggleUue ('('). Default is 'Nothing' (0). The possible values are:
    0 | Nothing
    1 | Complete UU/YENC
    2 | Any UU/YENC
    4 | Inline PGP
    5 | Complete UU/YENC & Inline PGP
    6 | Any UU/YENC & Inline PGP
    8 | Shar
    9 | Complete UU/YENC & Shar
    10 | Any UU/YENC & Shar
    12 | Inline PGP & Shar
    13 | Compl. UU/YENC & PGP & Shar
    15 | Hide all

Regex used to hide matching lines (hideline_regex)
    A regular expression to hide matching lines in pager. Could be used to hide excessive quoting, e.g. via '^>\s?>\s?>'. If left blank, no lines will be hidden. This option does not affect lines within verbatim blocks and is applied after trim_article_body and suppress_soft_hyphens.

External inews (inews_prog)
    Path, name and options of external inews(1). If you are reading via NNTP the default value is "--internal" (use built-in NNTP inews), else it is "inews -h". The article is passed to inews_prog on STDIN via '< article'.

(info_in_last_line)
    If ON, show current group description or article subject in the last line (not in the pager and global menu) — ToggleInfoLastLine ('i') toggles setting. This facility is useful as the full width of the screen is available to display long subjects. Default is OFF.

Use interactive mail reader (interactive_mailer)
    Interactive mailreader: if greater than 0 your mailreader will be invoked earlier for reply so you can use more of its features (e.g., MIME, pgp, ...). 1 means include headers, 2 means don't include headers (old use_mailreader_i=ON option). 0 turns off usage. This option has to suit mailer_format. Default is 0.

Use inverse video for page headers (inverse_okay)
    If ON use inverse video for page headers and URL highlighting. Default is ON.

Keep failed arts in ~/dead.articles (keep_dead_articles)
    If ON keep all failed postings in ${TIN_HOMEDIR:-"$HOME"}/dead.articles besides keeping the last failed posting in ${TIN_HOMEDIR:-"$HOME"}/dead.article. Default is ON.

Keep expired filter rules in file (keep_expired_filters)
    If ON keep expired filter rules in the file, but no longer evaluate them. Default is OFF.

Filter which articles (kill_level)
    This option controls the processing and display of articles that are killed. There are 3 options:

    0   Kill only unread arts is the 'traditional' behavior of tin. Only unread articles are killed once only by marking them read. As filtering only happens on unread articles with kill_level set to 0, art_marked_killed and art_marked_read_selected are only shown once. When you reenter the group the mark will be gone.

    1   Kill all arts & show with K will process all articles in the group and therefore there is a processing overhead when using this option. Killed articles are threaded as normal but they will be marked with art_marked_killed.

    2   Kill all arts and never show will process all articles in the group and therefore there is a processing overhead when using this option. Killed articles simply does not get displayed at all.
Default is 0 (Kill only unread arts).

Use 8-bit characters in mail headers (mail_8bit_header)
    Allows 8-bit characters unencoded in the header of mail message. Default is OFF. Turning it ON is effective only if mail_mime_encoding is also set to 8bit. Leaving it OFF is safe for most users and compliant to Internet Mail Standard (RFC 5322 and RFC 2047).

Mail address (mail_address)
    User's mail address (and full name), if not username@host. This is used when creating articles, sending mail and when pgp(1) / gpg(1) signing (RFC 9580).

MIME encoding in mail messages (mail_mime_encoding)
    MIME encoding of the body in mail message, if necessary (8bit, base64, quoted-printable, 7bit). Default is quoted-printable.

Quote line when mailing (mail_quote_format)
    Format of quote line when replying (via mail) to an article (%A=Address, %D=Date, %F=Fullname+Address, %G=Groupname, %M=Message-ID, %N=Fullname, %C=Firstname, %I=Initials). If the article has multiple addresses, only the first is evaluated. Default is "In article %M you wrote:"

Format of the mailbox (mailbox_format)
    Select one of the following mailbox-formats: MBOXO (default, except on SCO), MBOXRD or MMDF (default on SCO). See mbox(5) and RFC 4155 for more details on MBOXO and MBOXRD and mmdf(5) for more details about MMDF.

Mail directory (maildir)
    The directory where articles/threads are to be saved in mbox(5) format. This feature is mainly for use with the mutt(1) mail program. It allows the user to save articles/threads/groups simply by giving '=' as the filename to save to. Default is ${TIN_HOMEDIR:-"$HOME"}/Mail.

Invocation of your mail command (mailer_format)
    The format string used to create the mailer command with parameters that is used for mailing articles to other people. Default is '%M "%T" < %F' (e.g., /bin/mail "iain" < ~/.article). The flexible format allows other mailers with different command line parameters to be used such as
    sendmail -oem -t < %F
    mutt -H %F
    claws-mail --compose "mailto:%T?subject=%S&insert=%F"
    interactive_mailer must be set adequate. The following substitutions are supported:
    %F	filename
    %M	default_mailer
    %S	subject-field
    %T	to-filed
    %U	username
    %%	%

'Mark as (un)read' ignores tags (mark_ignore_tags)
    When this is ON, the GroupMarkThdRead ('K'), ThreadMarkArtRead ('K'), MarkThdUnread ('Z') at Group level and MarkArtUnread ('z') at Thread level functions mark just the current article or thread, ignoring other tagged, (un)read articles. When OFF, the same function presents a menu with choices of the current thread or article, all tagged, unread articles, or nothing.

Mark saved articles/threads as read (mark_saved_read)
    If ON mark articles that are saved as read. Default is ON.

Viewer program for MIME articles (metamail_prog)
    Path, name and options of external metamail(1) program used to view non-textual parts of articles. To use the built-in viewer, set to --internal. This is the default value when metamail(1) is not installed. Leave it blank if you don't want any automatic viewing of non-textual attachments. The PageViewAttach ('V') command can always be used to manually view any attachments. See also ask_for_metamail.

MM_CHARSET (mm_charset)
    Charset supported locally, which is also used for MIME header (charset parameter and charset name in header encoding) in mail and news postings. If MIME_STRICT_CHARSET is defined at compile time, text in charset other than the value of this parameter is considered not displayable and represented as '?'. Otherwise, all character sets are regarded as compatible with the display. If it's not set, the value of the environment variable $MM_CHARSET is used. US-ASCII or compile-time default is used in case neither of them is defined. If your system supports iconv(3) or ucnv_*(), this option is disabled and you should use mm_network_charset instead.

MM_NETWORK_CHARSET (mm_network_charset)
    Charset used for posting and MIME headers; replaces mm_charset. Conversion between mm_network_charset and local charset (determined via nl_langinfo(3)) is done via iconv(3) or ucnv_*(). If none of these functions are available on your system this option is disabled and you have to use mm_charset instead. mm_network_charset is limited to one of the following charsets:
    US-ASCII, ISO-8859-{1,2,3,4,5,7,9,10,13,14,15,16}, KOI8-{R,U,RU} EUC-{CN,JP,KR,TW}, ISO-2022-{CN,CN-EXT,JP,JP-1,JP-2}, Big5, UTF-8
    Not all values might work on your system, see iconv_open(3) for more details. If it's not set, the value of the environment variable $MM_CHARSET is used. US-ASCII or compile-time default is used in case neither of them is defined.

Attribute of highlighting with _dash_ (mono_markdash)
    Character attribute of words emphasized like _this_. It depends on your terminal which attributes are usable. See also word_h_display_marks and word_highlight.

Attribute of highlighting with /slash/ (mono_markslash)
    Character attribute of words emphasized like /this/. It depends on your terminal which attributes are usable. See also word_h_display_marks and word_highlight.

Attribute of highlighting with *stars* (mono_markstar)
    Character attribute of words emphasized like *this*. It depends on your terminal which attributes are usable. See also word_h_display_marks and word_highlight.

Attribute of highlighting with -stroke- (mono_markstroke)
    Character attribute of words emphasized like -this-. It depends on your terminal which attributes are usable. See also word_h_display_marks and word_highlight.

(newnews)
    These are internal timers used by tin to keep track of new newsgroups. Do not change them unless you understand what they are for.

Display these header fields (or *) (news_headers_to_display)
    Which news headers you wish to see. If you want to see _all_ the headers, place an '*' as this value. This is the only way a wildcard can be used. If you enter 'X-' as the value, you will see all headers beginning with 'X-' (like X-Alan or X-Pape). You can list more than one by delimiting with spaces. Not defining anything turns off this option.

Do not display these header fields (news_headers_to_not_display)
    Same as news_headers_to_display except it denotes the opposite. An example of using both options might be if you thought 'X-' headers were A Good Thing(tm), but thought Alan and Pape were miscreants... well then you would do something like this: news_headers_to_display=X- news_headers_to_not_display=X-Alan X-Pape Not defining anything turns off this option.

Quote line when following up (news_quote_format)
    Format of quote line when posting/following up an article (%A=Address, %D=Date, %F=Fullname+Address, %G=Groupname, %M=Message-ID, %N=Fullname, %C=Firstname, %I=Initials). If the article has multiple addresses, only the first is evaluated. Default is "%F wrote:".

NNTP read timeout in seconds (nntp_read_timeout_secs)
    Time in seconds to wait for a response from the server. Default is 120. Setting this to 0 means no timeout. As if you use the "-C" option in conjunction with a low value for nntp_read_timeout_secs may result in a timeout (and disconnect in batch mode) when connecting to large servers or entering large groups, because the timer is set when the command is sent to the server and that needs some time to compress the large response, the value should not be set too small.

Unicode normalization form (normalization_form)
    The normalization form tin should use to normalize Unicode input. The possible values are:

    0   None: no normalization

    1   NFKC: Compatibility Decomposition, followed by Canonical Composition

    2   NFKD: Compatibility Decomposition

    3   NFC: Canonical Decomposition, followed by Canonical Composition

    4   NFD: Canonical Decomposition

    5   NFKC_CF: Compatibility Decomposition, followed by Canonical Composition and Case Folding
Some normalization modes are only available if they are supported by the library tin uses to do the normalization. NFC should be used if possible (RFC 5198).

Format string for the display of mime header at Article level (page_mime_format)
    Format string tin uses for mime header at Page level. See the section "CUSTOMIZING THE SCREEN FORMAT". Default is "[-- %T%S%*n%z%*l%!c%!d%*e --]".

Format string for the display of uue header at Article level (page_uue_format)
    Format string tin uses for uue header at Page level. See the section "CUSTOMIZING THE SCREEN FORMAT". Default is "[-- %T%S%*n%I%!d%*e --]".

Format string for the display of yenc header at Article level (page_yenc_format)
    Format string tin uses for yenc header at Page level. See the section "CUSTOMIZING THE SCREEN FORMAT". Default is "[-- %*N%!d%I [%F%G]%V%W%X --]".

Go to first unread article in group (pos_first_unread)
    If ON put cursor at first unread article in group otherwise at last article. Default is ON.

Use 8-bit characters in news headers (post_8bit_header)
    Allows 8-bit characters unencoded in the header of a news article, if set this also disables the generation of MIME-headers when they are usually required. Default is OFF. Only enacted if post_mime_encoding is also set to 8bit. In a number of local hierarchies where 8-bit characters are used, using unencoded (raw) 8-bit characters in header is acceptable and sometimes even recommended so that you need to check the convention adopted in the local hierarchy of your interest to determine what to do with this and post_mime_encoding.

MIME encoding in news messages (post_mime_encoding)
    MIME encoding of the body in news message, if necessary. (8bit, base64, quoted-printable, 7bit). Default is 8bit, which leads to no encoding. base64 and quoted-printable are usually undesired on usenet.

View post-processed files (post_process_view)
    If ON, then tin will start an appropriate viewer program to display any files that were post processed and uudecoded. The program is determined using the mailcap(5) file. Default is ON.

Post process saved articles (post_process_type)
    This specifies whether to perform post processing on saved articles. Because the shell archive may contain commands you may not want to be executed, be careful when extracting shell archives. The following values are allowed:

    0   No (default), no post processing is done.

    1   Shell archives, unpacking of multi-part shar(1) files only.

    2   Yes, binary attachments and data will be decoded and saved.

Filename to be used for storing posted articles (posted_articles_file)
    Keep posted articles in given file. If the given filename does not contain any expandable strings it will be prefixed with ${TIN_HOMEDIR:-"$HOME"}/Mail/. If no filename is set then postings will not be saved. See the section "MAILING PIPING PRINTING REPOSTING AND SAVING ARTICLES" for more information about the various expansion characters. Default is 'posted'.

Print all headers when printing (print_header)
    If ON, then the full article header is sent to the printer. Otherwise only the ''Subject:'' and ''From:'' fields are output. Default is OFF.

Printer program with options (printer)
    The printer program with options that is to be used to print articles. The default is lpr(1) for BSD machines and lp(1) for SysV machines. Printing from tin may have been disabled by the System Administrator.

Process only unread articles (process_only_unread)
    If ON only save/print/pipe/mail unread articles (tagged articles excepted). Default is OFF.

Show empty Followup-To in editor (prompt_followupto)
    If ON show empty ''Followup-To:'' header when editing an article. Default is OFF.

Characters used as quote-marks (quote_chars)
    The character used in quoting included text to article followups and mail replies. The '_' character represents a blank character and is replaced with ' ' when read, %I is replaced by author's initials. If the article has multiple addresses, only the first is evaluated. Default is '>_'.

Quoting behavior (quote_style)
    How articles should be quoted when following up or replying to them. There are a number of things that can be done: empty lines can be quoted, signatures can be quoted and quote_chars can be compressed when quoting multiple times (for example, '> > >' will be turned into '>>>'). The default is to compress quotes, and to quote empty lines.
    When you are viewing an article in raw mode ('^H'), and follow up or reply to it, the signature will be quoted even if it otherwise would be not. If show_signatures is off, then the signature will never be quoted.

Regex used to show quoted lines (quote_regex)
    A regular expression that will be applied when reading articles. All matching lines are shown in col_quote. If quote_regex is blank, then tin uses a built-in default.

Regex used to show twice quoted l. (quote_regex2)
    A regular expression that will be applied when reading articles. All matching lines are shown in col_quote2. If quote_regex2 is blank, then tin uses a built-in default.

Regex used to show >= 3 times q.l. (quote_regex3)
    A regular expression that will be applied when reading articles. All matching lines are shown in col_quote3. If quote_regex3 is blank, then tin uses a built-in default.

Article recentness time limit (recent_time)
    If set to 0, this feature is deactivated, otherwise it means the number of days. Default is 2.

Render BiDi (render_bidi)
    If ON tin does the rendering of bi-directional text. If OFF tin leaves the rendering of bi-directional text to the terminal. Default is OFF.

Interval in seconds to reread active (reread_active_file_secs)
    The news ${TIN_LIBDIR:-NEWSLIBDIR}"/"${TIN_ACTIVEFILE:-active} file is reread at regular intervals to show if any new news has arrived. Default is 1200. Setting this to 0 will disable this feature.

Directory to save arts/threads in (savedir)
    Directory where articles/threads are saved. Default is ${TIN_HOMEDIR:-"$HOME"}/News.

Character to show global scopes (scope_marked_global)
    The character used to show that a scope was read from the global attributes file. Default is '!'.

Char to show global scope matches (scope_marked_global_match)
    The character used to show that a scope was read from the global attributes file and the current group matches. Default is ':'.

Character to show local scopes (scope_marked_local)
    The character used to show that a scope was read from the local attributes file. Default is ' '.

Char to show local scope matches (scope_marked_local_match)
    The character used to show that a scope was read from the local attributes file and the current group matches. Default is '*'.

Score limit (kill) (score_limit_kill)
    If the score of an article is below or equal this value the article gets marked as killed.

Score limit (select) (score_limit_select)
    If the score of an article is above or equal this value the article gets marked as hot.

Default score to kill articles (score_kill)
    Score of an article which should be killed, this must be <= score_limit_kill.

Default score to select articles (score_select)
    Score of an article which should be marked hot, this must be >= score_limit_select.

Number of lines to scroll in pager (scroll_lines)
    The number of lines that will be scrolled up/down in the article pager when using cursor-up/down. The default is 1 (line-by-line). Set to 0 to get traditional tin page-by-page scrolling. Set to -1 to get page-by-page scrolling where the top/bottom line is carried over onto the next page. This setting supersedes show_last_line_prev_page=ON. Set to -2 to get half-page scrolling. This setting supersedes full_page_scroll=OFF.

Format string for the Selection level (select_format)
    Format string tin uses for Selection level representation. See the section "CUSTOMIZING THE SCREEN FORMAT". Default is "%f %n %U %G %d".

In group and thread level, show author by (show_author)
    Which information about the author should be shown. Default is 2, authors full name.

    0   None, only the ''Subject:'' line will be displayed.

    1   Address, ''Subject:'' line & the address part of the ''From:'' line are displayed.

    2   Full Name, ''Subject:'' line & the authors full name part of the ''From:'' line are displayed (default).

    3   Address and Name, ''Subject:'' line & all of the ''From:'' line are displayed.

Show description of each newsgroup (show_description)
    If ON show a short group description text after newsgroup name at the group selection level. The ''-d'' command-line flag will override the setting and turn descriptions off. The text used is taken from the ${TIN_LIBDIR:-NEWSLIBDIR}/newsgroups file and if supported (requires tin to be built with mh-mail-handling support) from ${TIN_HOMEDIR:-"$HOME"}/.tin/mailgroups for mailgroups. Default is ON.

Function for sorting articles (sort_function)
    Function used for sorting articles. Default is 0.

    0   Use qsort(3) for sorting.

    1   Use heapsort(3) for sorting. This might be faster in large groups with long threads (somewhat presorted data).

Show help/mail sign in level titles (show_help_mail_sign)
    Allows you to select whether tin shows a help indication, a new mail indication, both, or neither in the various level titles. Default is 3.

    0   Don't show help or mail sign.

    1   Show only help sign.

    2   Show only mail sign if new mail, show only the mail sign, and only if new mail has arrived.

    3   Show mail if new mail else help s., show mail sign if new mail has arrived otherwise show help sign.

Show only unread articles (show_only_unread_arts)
    If ON show only new/unread articles otherwise show all articles. Default is ON.

Show only groups with unread arts (show_only_unread_groups)
    If ON show only subscribed groups that contain unread articles. Default is OFF.

Display signatures (show_signatures)
    If OFF don't show signatures when displaying articles. Default is ON.

Display score (show_art_score)
    If ON show article score in the lower left corner when displaying articles. Default is OFF. See also col_score_neg and col_score_pos.

Prepend signature with '\n-- \n' (sigdashes)
    If ON prepend the signature with sigdashes. Default is ON.

Create signature from path/command (sigfile)
    The path that specifies the signature file to use when posting, following up to or replying to an article. If the path is a directory then the signature will be randomly generated from files that are in the specified directory. If the path starts with a ! the program the path points to will be executed to generate a signature. In order to pass the group name to the program, %G can be specified. This will be replaced by the name of the current newsgroup. --none will suppress any signature. Default is ${TIN_HOMEDIR:-"$HOME"}/.Sig.

Add signature when reposting (signature_repost)
    If ON add signature to reposted articles. Default is ON.

Regex used to highlight /slashes/ (slashes_regex)
    A regular expression that will be applied when reading articles. All matching words are shown in col_markslash or mono_markslash. If slashes_regex is blank, then tin uses a built-in default.

Sort articles by (sort_article_type)
    This specifies how articles should be sorted. Sort by ascending Date (6) is the default. The following sort types are allowed:

    0   Nothing, don't sort articles.

    1   Subject: (descending), sort articles by ''Subject:'' field descending.

    2   Subject: (ascending), sort articles by ''Subject:'' field ascending.

    3   From: (descending), sort articles by ''From:'' field descending.

    4   From: (ascending), sort articles by ''From:'' field ascending.

    5   Date: (descending), sort articles by ''Date:'' field descending.

    6   Date: (ascending), sort articles by ''Date:'' field ascending (default).

    7   Score (descending), sort articles by filtering score descending.

    8   Score (ascending), sort articles by filtering score ascending.

    9   Lines: (descending), sort articles by ''Lines:'' field descending.

    10  Lines: (ascending), sort articles by ''Lines:'' field ascending.

Sort threads by (sort_threads_type)
    This specifies how threads will be sorted. Sort by descending Score (1) is the default. The following sort types are allowed:

    0   Nothing, don't sort threads.

    1   Score (descending), sort threads by filtering score descending (default).

    2   Score (ascending), sort threads by filtering score ascending.

    3   Last posting date (descending), sort threads by date of last posting descending.

    4   Last posting date (ascending), sort threads by date of last posting ascending.

Spamtrap warning address parts (spamtrap_warning_addresses)
    Set this option to a list of comma-separated strings to be warned if you are replying to an article by mail where the e-mail address contains one of these strings. The matching is case-insensitive. Example:

    spam,delete,remove

Regex used to highlight *stars* (stars_regex)
    A regular expression that will be applied when reading articles. All matching words are shown in col_markstar or mono_markstar. If stars_regex is blank, then tin uses a built-in default.

Strip blanks of end of lines (strip_blanks)
    Strips the blanks from the end of each line therefore speeding up the display when reading on a slow terminal or via modem. Default is ON.

Remove bogus groups from newsrc (strip_bogus)
    Bogus groups are groups that are present in your ${TIN_HOMEDIR:-"$HOME"}/.newsrc file that no longer exist on the news server. There are 3 options. 0 means do nothing & always keep bogus groups. 1 means bogus groups will be permanently removed. 2 means that bogus groups will appear on the Group Selection Menu, prefixed with a 'D'. This allows you to unsubscribe from them as and when you wish. Default is 0 (Always Keep).

No unsubscribed groups in newsrc (strip_newsrc)
    If ON, then unsubscribed groups will be permanently removed from your ${TIN_HOMEDIR:-"$HOME"}/.newsrc file. Default is OFF.

Regex with Subject prefixes (strip_re_regex)
    A regular expression to find Subject prefixes like "Re:" to remove. If strip_re_regex is blank, then tin(1) uses a built-in default.

Regex with Subject suffixes (strip_was_regex)
    A regular expression to find Subject suffixes like "(was:" to remove. If strip_was_regex is blank, then tin(1) uses a built-in default.

Regex used to highlight -strokes- (strokes_regex)
    A regular expression that will be applied when reading articles. All matching words are shown in col_markstroke or mono_markstroke. If strokes_regex is blank, then tin uses a built-in default.

Wrap around threads on next unread (wrap_on_next_unread)
    If enabled a search for the next unread article will wrap around all articles to find also previous unread articles. If disabled the search stops at the end of the thread list. Default is ON.

Display "a as Umlaut-a (tex2iso_conv)
    If ON, show "a as Umlaut-a, etc. Default is OFF. This behavior can also be toggled in the article viewer via PageToggleTex2iso ('"').

Thread articles by (thread_articles)
    Defines which threading method to use. It's possible to set the threading type on a per group basis by setting the group attribute variable thread_arts to 0 – 4 in the file ${TIN_HOMEDIR:-"$HOME"}/.tin/attributes. (See also "ATTRIBUTES MENU AND GROUP ATTRIBUTES".) The default is Both Subject and References. The choices are:

    0   None, don't thread.

    1   Subject, thread on ''Subject:'' only.

    2   References, thread on ''References:'' only.

    3   Both Subject and References, thread on ''References:'' then ''Subject:'' (default).

    4   Multipart Subject, thread multipart articles on ''Subject:''.

    5   Percentage Match, thread base upon a partial character match on ''Subject:''.

Catchup thread by using left key (thread_catchup_on_exit)
    If ON catchup group/thread when leaving with the left arrow key. Default is ON.

Format string for the Thread level (thread_format)
    Format string tin uses for Thread level representation. See the section "CUSTOMIZING THE SCREEN FORMAT". Default is "%n %m [%L] %T %F".

Matchingness of a thread (thread_perc)
    How closely the subjects must match for two threads to be considered part of the same thread. This is a percentage and the default is 75%.

Score of a thread (thread_score)
    How the total score of a thread is computed. Default is 0, the maximum score in this thread.

    0   Max, the maximum score in this thread.

    1   Sum, the sum of all scores in this thread.

    2   Average, the average score in this thread.

CA certificate file (tls_ca_cert_file)
    The name of file containing all trusted CA certificates used for NNTPS (RFC 8143) connections. If left empty the system default will be used.

Transliteration (translit)
    If ON append //TRANSLIT to the first argument of iconv_open(3) to enable transliteration. This means that when a character cannot be represented in the target character set, it can be approximated through one or several similarly looking characters. On systems where this extension doesn't exist, this option is disabled. Default is OFF.

How to treat blank lines (trim_article_body)
    Allows you to select how tin treats blank lines in article bodies. Default is 0. This option does not affect lines within verbatim blocks and is applied before hideline_regex.

    0   Don't trim article body, do nothing.

    1   Skip leading blank lines.

    2   Skip trailing blank lines.

    3   Skip leading and trailing blank l., skip leading and trailing blank lines.

    4   Compact multiple between text, replace multiple blank lines between text blocks with one blank line.

    5   Compact multiple and skip leading, 4 + 1

    6   Compact multiple and skip trailing, 4 + 2

    7   Compact mltpl., skip lead. & trai., 4 + 3

Suppress soft hyphens (suppress_soft_hyphens)
    If ON remove soft hyphens in non verbatim blocks of articles when they are displayed in a UTF-8 locale. The character SOFT HYPHEN (U+00AD) is an invisible format character that merely indicates a preferred intraword line break position. However, some terminal emulators display a space or a hyphen, for example, in the place of the soft hyphen. This setting can be used to improve the display of those articles. Default is OFF.

Regex used to highlight _underline_ (underscores_regex)
    A regular expression that will be applied when reading articles. All matching words are shown in col_markdash or mono_markdash. If underscores_regex is blank, then tin uses a built-in default.

Remove ~/.article after posting (unlink_article)
    If ON remove ~/.article after posting. Default is ON.

Program that opens URLs (url_handler)
    The program that will be run when launching URLs in the article viewer using PageViewUrl ('U'). The actual URL will be appended. Default is url_handler.pl.

URL highlighting in message body (url_highlight)
    Enable highlighting URLs in message body. Default is ON.

Use ANSI color (use_color)
    If enabled tin uses ANSI-colors. Default is OFF.

Use scroll keys on keypad (use_keypad)
    Default is OFF.

Use mouse in xterm (use_mouse)
    Allows the mouse button support in an xterm(1x) to be enabled/disabled. Default is OFF.

Use slrnface to show ''X-Face:''s (use_slrnface)
    If enabled tin uses slrnface(1) to interpret the ''X-Face:'' header. For this option to have any effect, tin must be running in an xterm(1x) and slrnface(1) must be in your $PATH. Default is OFF.

Use UTF-8 graphics (utf8_graphics)
    If ON use UTF-8 characters for indicator ('→'), thread/attachment tree and ellipsis ('...'). Default is OFF.

Regex for begin of a verbatim block (verbatim_begin_regex)
    A regular expression that tin will use to find the begin of a verbatim block.

Regex for end of a verbatim block (verbatim_end_regex)
    A regular expression that tin will use to find the end of a verbatim block.

Detection and display of verbatim blocks (verbatim_handling)
    Allows you to select how tin treats verbatim blocks in article bodies. Default is 1.

    0   Don't detect verbatim blocks. Do nothing.

    1   Detect and show verbatim blocks. Detect and show verbatim blocks, including begin and end marks.

    2   Detect, hide begin and end marks. Detect and show verbatim blocks, hide begin and end marks.

    3   Don't show verbatim blocks. Detect verbatim blocks and hide them completely.

Wildcard matching (wildcard)
    Allows you to select how tin matches strings. The default is 0 and uses the wildmat(3) notation, which is how this has traditionally been handled. Setting this to 1 allows you to use perl(1) compatible regular expressions pcre(3) or pcre2(3) (see also perlre(1) and pcrepattern(3) or pcre2pattern(3)). You will probably want to update your filter file if you use this regularly. NB: Newsgroup names will always be matched using the wildmat(3) notation.

What to display instead of mark (word_h_display_marks)
    Should the leading and ending stars, slashes, strokes and dashes also be displayed, even when they are highlighting marks?

    0   no

    1   yes, display mark

    2   print a space instead

Word highlighting in message body (word_highlight)
    Enable word highlighting. See word_h_display_marks for the options available. If use_color is enabled the colors specified in col_markdash, col_markslash, col_markstar and col_markstroke are used for word highlighting else the character attributes specified in mono_markdash, mono_markslash, mono_markstar and mono_markstroke are used. Default is ON.

Page line wrap column (wrap_column)
    Sets the column at which a displayed article body should be wrapped. If this value is equal to 0, it defaults to the current screen width. If this value is greater than your current screen width and dont_break_words is unset the part off-screen is not displayed. Thus setting this option to a large value can be used to disable wrapping. If this value is negative the wrap margin is the current screen width plus the given value (as long as the result is still positive, otherwise it will fall back to the current screen width). Default is 0, wrapping at the current screen width.

Quote line when crossposting (xpost_quote_format)
    Format is the same as for news_quote_format, this is used when answering to a crossposting to several groups with no ''Followup-To:'' set.

  ATTRIBUTES MENU AND GROUP ATTRIBUTES
tin allows certain attributes to be set on a per group basis. If it exists, the global attributes file, ${TIN_LIBDIR:-NEWSLIBDIR}/attributes is read. After that, the user's own attributes file ${TIN_HOMEDIR:-"$HOME"}/.tin/attributes is read. The global attributes file is useful for distributing system-wide defaults to new users who have no private attributes file yet.

Note that the scope=<grouplist> line has to be specified before the attributes are specified for that list. All attributes are set to a reasonable default so you only have to specify the attribute that you want to change (e.g., savedir). All toggle attributes are set by specifying ON/OFF. Otherwise, these function exactly the same as their global equivalents. For more details see tin(5).

Attributes can also be changed from the attributes menu which can be accessed by ConfigToggleAttrib ('<TAB>') from the options menu or ScopeSelect ('^J' or '<CR>') from the scopes menu. The attributes menu looks and behaves very similar to the options menu. The title shows the current scope. Attributes set in the current scope are marked with '+' to the left of the attributes number.

Besides the keys for moving around and changing values known from the options menu the attributes menu provides the following command: ConfigResetAttrib ('r') which resets an attribute to a default value.

  SCOPES MENU
The scopes menu (accessible from the options menu with ConfigScopeMenu ('S')) shows all scopes read from the global and local attributes file. Scopes from the global attributes file are marked with scope_marked_global ('!') to the left of the scope number, scopes from the local attributes file are marked with scope_marked_local (' '). When the scopes menu is accessed from the group, thread, or article level, scopes where the current group matches are marked with scope_marked_global_match (':') for scopes from the global attributes file and with scope_marked_local_match ('*') for scopes from the local attributes file.

In addition to the common moving keys the following commands are available: ScopeSelect ('^J' or '<CR>') enter the attributes menu for the current scope, ScopeEditAttributesFile ('E') edit the local attributes file, ScopeAdd ('a') add a new scope, ScopeDelete ('d') delete the current scope, ScopeMove ('m') move the current scope to a new position, ScopeRename ('r') rename the current scope. Note that delete (ScopeDelete), rename (ScopeRename) and move (ScopeMove) are not available for global scopes. ToggleHelpDisplay ('H') toggles the help mini menu at the bottom of the screen and posting etiquette after composing an article (beginner_level).

  SERVERRC MENU
The serverrc menu (accessible from the options menu with ConfigServerrcMenu ('s')) can be used to change the server specific settings which are stored in ${TIN_HOMEDIR:-"$HOME"}/.tin/$NNTPSERVER/serverrc. Changing the value of cache_overview_files, compress_overview_files or nntp_pipeline_limit will be become effective immediately for all groups visited after the change. Changing any other values, i.e. add_cmd_line_opts or disabled_nntp_cmds, do require a restart to take effect.

  FILTERING ARTICLES
When there is a subject or an author which you are either very interested in, or find completely uninteresting, you can easily instruct tin to auto-select or auto-kill articles that match rules that you specify. This can be anything from the name of the author to the number of lines in an article.

When tin starts up the user's kill-file ${TIN_HOMEDIR:-"$HOME"}/.tin/filter or the file specified via ''-F'' is read (see also tin(5) ). Each time a newsgroup is entered the rules are applied and articles killed or selected when they meet certain criteria.

The degree to which rules are applied depend on the kill_level tinrc setting. By default killed articles will only be marked read. Adjust kill_level for more aggressive processing. Articles that match an auto-selection rule are marked with a ''*''.

Filtering rules can be manually entered into ${TIN_HOMEDIR:-"$HOME"}/.tin/filter (but don't do this whilst running tin else you will lose your changes) or by using an on-screen menu within tin.

The filtering capabilities of tin have been significantly enhanced over previous versions to include scoring and better pattern matching. It is recommended that you read the file filtering in the tin documentation directory. This file can also be read online at
<http://bzr.tin.org/doc/filtering>.

Note that there are two different ways to match strings (see wildcard tinrc variable): via wildmats or via regular expressions. The later is more complex but offers significantly more options. If you intend to change the matching type from one to the other, the rules in the filter file need to be changed manually first. For switching from wildmats to regexp there is a helper script w2r.pl(1) in the tools dir and online at
<http://bzr.tin.org/tools/w2r.pl>.

As regular expressions do provide options which are not available with wildmats there is no helper script for such a switch. If you switch to regular expressions, stay with them. They are powerful and fast.

The on-screen filtering menu is accessed by pressing MenuFilterKill ('^K') or MenuFilterSelect ('^A') at the Group and Article levels. It allows the user to kill or select an article that matches the current ''Subject:'' line, ''From:'' line or a string entered by the user. The user entered string can be applied to the ''Subject:'', ''From:'', ''Message-ID:'', ''References:'', ''Xref:'' or ''Path:'' line of an article. The filter can be limited to the current newsgroup or it can apply to all newsgroups. Once entered the user can abort the command and not save the new filter, edit the full filter file or save filter.

  POSTING ARTICLES
tin allows posting of articles, follow-up to already posted articles and replying direct through mail to the author of an article.

Use the Post ('w') command to post an article to a newsgroup. After entering the post subject the default editor (i.e., vi(1)) or the editor specified by the $VISUAL or $EDITOR environment variable will be started and the article can be entered. To crosspost articles simply add a comma and the name of the newsgroup(s) to the end of the ''Newsgroups:'' line at the beginning of the article. After saving and exiting the editor you are asked if you wish to a)bort posting the article, e)dit the article again or p)ost the article to the specified newsgroup(s).

Use the DisplayPostHist ('W') command to display a history of the articles you have posted. The date the article was posted, which newsgroups the article was posted to and the articles subject line are displayed. See the section "POSTING HISTORY LISTING" for more information.

Use the PageFollowupQuote ('f'), PageFollowup ('F') or PageFollowupQuoteHeaders ('^W') command to post a follow-up article to an already posted article. The PageFollowupQuote command will copy the text of the original article into the editor. The PageFollowupQuoteHeaders command will copy the text and all headers of the original article into the editor. The editing procedure is the same as when posting an article with the Post ('w') command.

Use the PageReplyQuote ('r'), PageReply ('R') or PageReplyQuoteHeaders ('^E') command to reply direct through mail to the author of an already posted article. The PageReplyQuote command will copy the text of the original article into the editor. The PageReplyQuoteHeaders command will copy the text and all headers of the original article into the editor. The editing procedure is the same as when posting an article with the Post ('w') command. After saving and exiting the editor you are asked if you wish to abort sending the article via PostAbort ('a'), edit the article again via PostEdit ('e') or send the article to the author via PostSend ('s').

  CUSTOMIZING THE ARTICLE QUOTE STRING
When posting a followup to an article or replying direct to the author of an article via email the text of the article can be quoted. The beginning of the quoted text can contain information about the quoted article (e.g., Name and the Message-ID of the article). If the article has multiple addresses, only the first is evaluated. To allow for different situations, certain information from the article can be used in the quoted string. The following variables are expanded if found in the tinrc variables mail_quote_format, news_quote_format or xpost_quote_format:
    %A	Address (Email)
    %D	Date (uses date_format)
    %F	Full address (%N <%A>)
    %G	Groupname
    %M	Message-ID
    %N	Fullname of author
    %C	Firstname of author
    %I	Initials of author
e.g.,
    mail_quote_format=On %D in %G you wrote:
    news_quote_format=In %M, %F wrote:
would expand to:
    On Tue, 21 Sep 1993 09:45:51 in alt.sources you wrote:
    In <abcINN123@example.org>, Joe Bar <joe@example.org> wrote:
The quoted text section of an article is marked by a preceding quote string at the beginning of each quoted line. The default quote string is set to '>_'. The default can be changed by setting the tinrc variable quote_chars to ones own preference. (Note that '_' underline is used to represent a space).

  MAILING PIPING PRINTING REPOSTING AND SAVING ARTICLES
The command interface to GroupMail, PageMail, PostMail or ThreadMail ('m'), Pipe ('|'), Print ('o'), PageRepost or GroupRepost ('x') and GroupSave, PageSave or ThreadSave ('s' and GroupAutoSave, PageAutoSave or ThreadAutoSave 'S') articles is the same for ease of use.

Auto-saving with *AutoSave ('S') is a special case and operates only on marked articles. They will be processed without any further prompting according to the default save parameters defined in tinrc or by any attributes set for the current group.

Otherwise, the initial prompt will ask you to select which article, thread, hot (auto-selected), regular expression pattern, tagged articles you wish to mail, pipe etc.

Tagged articles must have already been tagged with a *Tag ('t') command. All tagged articles can be untagged by a *Untag ('U') untag command.

If a regular expression pattern is selected you are asked to enter a pattern (e.g., to match all articles subject lines containing 'net News' you enter "net News"). Any articles that match the entered expression will be mailed, piped etc. See also the wildcard tinrc variable for advanced pattern matching options.

Various expansion characters are recognized when entering the directory and file to save to. Environment variables (prefixed with '$') and user home directories (prefixed by '~' or '~username') can be specified. Environment variables can themselves contain other special characters.

To save articles to a mailbox enter '=<mailbox name>' when asked for the save filename. If you enter just '=' then articles will be saved to a mailbox with the name of the current newsgroup (eg, alt.sources). See maildir.

To save in savedir/<news.group.name>/<filename> format enter '+<filename>'. See savedir. Like '+' %G is expanded to the current news.group.name but without savedir prefixed. %P is expanded to the news.group.name with all '.' replaced by '/'.

If saving multiple files at once the filename (if not referring to a mailbox) will be extended by ".num" where "num" is at least a 3-digit number counting up from 1. Environment variables are allowed within a filename (e.g., $SOURCES/dir/filename).

When saving articles you can specify whether the saved files should be post processed. A default process type can be set via post_process_type.

  AUTOMATIC MAILING AND SAVING NEW NEWS
tin allows new/unread news articles to be mailed (''-M'' and ''-N'' option) or saved (''-S'' option) in batch mode for later reading. Useful when going on holiday and you don't want to return and find that expire has removed a whole load of unread articles. Best to run via cron(8) everyday while away, after which you will be mailed a report of which articles were mailed/saved from which newsgroups and the total number of articles mailed/saved. Articles are saved in a private news structure under your savedir directory (default is ${TIN_HOMEDIR:-"$HOME"}/News). Be careful of using this option if you read a lot of groups because you could overflow your file system.

When using ''-S'' together with a given directory to save to (''-s'' option), the same directory must be specified when reading the articles by ''-R''.

If you only want to save some of your groups use the batch_save tinrc variable. Set to ON or OFF in tinrc to enable/disable saving of all groups and then use the batch_save attribute to fine tune which groups you want to have saved. For example, if you want to save most of your groups, then set batch_save to ON in tinrc and selectively turn off the ones you don't want using attributes.

tin -M iain -c -f newsrc.mail
    (mail any unread articles in newsgroups specified in file newsrc.mail to the local user iain and mark them as read)

tin -S -c -f newsrc.save
    (save any unread articles in newsgroups specified in file newsrc.save and mark them as read)

tin -R
    (read any articles saved by tin -S)

  RANGES
A range is simply a group of items marked using the SetRange ('#') key. Certain tin commands will operate on a range if one exists rather than just the current item. A range is an expression of the form <min>–<max>, e.g., 10–15 will highlight items 10 through 15 on the current screen. Other than absolute numeric positions, '.' can be used in place of the current cursor position and '$' can be used to mean the highest number available. Entering '0' at the prompt undoes the previously entered range selection. Currently the only commands that understand ranges are GroupMarkThdRead ('K'), MarkArtUnread ('z') and MarkThdUnread ('Z').

  NEWSGROUP LISTS & WILDCARDS
Several places in tin allow you to specify a list of newsgroups. These include command-line groups, (un)subscribe groups, the AUTO[UN]SUBSCRIBE mechanism. The scope= attributes file tag and the filter file group= tag also use the same syntax. tin interprets this variable similarly to rn(1). It contains a list of patterns, separated by commas and possibly prefixed with exclamation points. An exclamation point negates the meaning of a match on this pattern, and can be used to cancel certain matches. See wildmat(3) for details about the understood patterns. Some examples:

alt.config,news.*,!news.test

Matches alt.config and everything in the 'news' hierarchy except news.test

See the explanation for the $AUTOSUBSCRIBE and $AUTOUNSUBSCRIBE variables for further examples.

  INTERACTIVE SEARCH
Depending on the setting of the wildcard tinrc variable there are currently a few limitations for interactive searches SearchSubjF ('/'), SearchSubjB ('?'), SearchAuthF ('a'), SearchAuthB ('A'), SearchBody ('B') and SearchRepeat ('\') one should be aware of.

Wildmat searches automatically enclose the search string in asterisks ('*'), simulating substring searches. This behavior is fixed and cannot be altered.

Regex searches automatically replace spaces (' ') and/or tabs ('\t') in the search string with the '\s' meta-character, which matches any whitespace character. This behavior cannot be prevented. Also regex searches are case insensitive by default. To enforce case sensitivity, prefix the search pattern by one of the following: '(?^)' or '(?-i)'.

If Unicode normalization is available, search patterns are normalized according to the normalization_form tinrc variable.

  SIGNATURES
tin will recognize a signature in either ${TIN_HOMEDIR:-"$HOME"}/.signature or ${TIN_HOMEDIR:-"$HOME"}/.Sig. If ${TIN_HOMEDIR:-"$HOME"}/.signature exists, then the signature will be pulled into the editor for mail commands only. A signature in ${TIN_HOMEDIR:-"$HOME"}/.signature will not be pulled into the editor for posting commands since inews(1) will append the signature itself.

A signature in ${TIN_HOMEDIR:-"$HOME"}/.Sig will be pulled into the editor for both posting and mailing commands.

The following is an example of a .Sig file:
    NAMES  Joe Bar <joe@example.org>
    SNAIL  Musterweg 12, 99999 Notreal, Germany

tin also has the capability to generate random signatures on a per-newsgroup basis if so desired. The way to accomplish this is to specify the default signature or the group attribute sigfile as a directory. If for example the sigfile path is /usr/iain/.sigs and .sigs is a directory then tin will select a random signature from any file that is in the directory .sigs (note: one signature per numbered file). A random signature can also consist of a fixed part signature that can contain your name, address etc. followed by the random sig. The fixed part of the random sig is read from the file $HOME/.sigfixed.

  CUSTOMIZING THE SCREEN FORMAT
The look of the Selection, Group and Thread level can be customized via format strings. These format strings define the content and the position of each element on the screen. Variables are used within the format strings as placeholders. If the article has multiple addresses, only the first is evaluated. The following variables are available:

%D        date
%F        from, name and/or address
%G        newsgroup name
%I        initials
%L        line count
%M        message-id
%R        number of responses in thread
%S        score
%T        thread tree
%U        unread count
%d        newsgroup description
%f        newsgroup flag
%m        article marks
%n        current group/thread/article number
%s        subject
%%        %

Not all variables can be used in each level. The following table provides an overview:

	select_format	group_format	thread_format
%D		X	X
%F		X	X
%G	X
%I		X	X
%L		X	X
%M		X	X
%R		X
%S		X	X
%T			X
%U	X
%d	X
%f	X
%m		X	X
%n	X	X	X
%s		X
%%	X	X	X

Defaults for the format strings:

select_format:	"%f %n %U  %G  %d"
group_format:	"%n %m %R %L  %s  %F"
thread_format:	"%n %m  [%L]  %T  %F"

show_description controls whether the newsgroup description is shown or not. The description can also be toggled with SelectToggleDescriptions ('d').

The information displayed with '%F' depends on the value of show_author. GroupToggleSubjDisplay resp. ThreadToggleSubjDisplay ('d') switches through all available options.

For date representation '%D' uses date_format. It is possible to specify a different date format in round brackets (e.g., '%(%d %b %y %H:%M)D'). See date_format for more details.

The length of each item (except '%%') can be defined with a positive number after the '%'. The following example displays the score in the thread level 10 characters wide: '%10S'.

If the newsgroup name is displayed together with the newsgroup description, the width of the newsgroup name can be controlled via an optional comma separated second value (e.g., '%60,20G'). It is valid to omit the first value (e.g., ('%,20G')). If no second value is given, tin uses a default value of 32.

Some variables do have a default width which may lead to truncation. Truncation for variables which contain only numbers happens by dividing the value with a sufficient power of ten and adding a SI suffix to the result, that is the variable holds a value of 54321 and the width for the variable is 4 the result will be "54 k". If that's undesired you have to specify a larger width manually, e.g., '%6n'. Here is an overview of the defaults:

Variable	width
%I	 3
%L	 4
%M	10
%R	 3
%S	 6
%U	 5
%n	 4

If no length is given for '%D', the length is determined by the format string for the date and the date of the current day. If the date format string contains weekdays or months names it may happen that the date is longer than determined in the first pass. In this case, the date is truncated before display. This occurs, for example, if the current month is May and the article to which the date is displayed was posted in December. In such cases it might be useful to determine the maximum length manually and specify the length in the format string.

In case the format string contains '%G' and '%d' and no length are given, tin determines the longest newsgroup name and uses this length for '%G'. The remaining space will be used for '%d'.

When the format string contains the specifier '%F' and '%s' resp. '%T' and no length is given, '%F' will use one third and '%s' resp. '%T' will use two third of the available space.

In addition, a minimum or a maximum screen width can be defined for each item (except '%%'). In this case, the item will only be displayed when the screen is wider resp. smaller than specified. This comes in handy to not overload a small screen but have maximum information on a large screen. The minimum screen width has to be specified by a positive number preceded by an '>', the maximum screen width has to be specified by a positive number preceded by an '<'. In the following example tin will display the score only if the screen is wider than 100 characters: '%>100S'.

If both the length and the minimum or maximum screen width should be specified for an item, the length must be the first parameter and the minimum or maximum screen width must be the second one. The following example displays the score with a length of 10 characters only if the screen is wider than 100 characters: '%10>100S'. A second length can be specified for '%F' and '%s' resp. '%T', separated by a colon, which is used if the minimum or maximum screen width is not reached. If no length is specified after the colon, the item is displayed even if the minimum screen width is not reached and the length is calculated as if no minimum (or maximum) screen width had been specified. In the following example tin will display the subject with a length of 60 characters if the screen is wider than 100 characters, otherwise a length of 40 characters is used: '%60>100:40s'.

The look of the Attachment level and the mime, uue and yenc header at Page level can be customized too via format strings. The following variables are available:

%C        Charset
%c        Like %C but with description
%D        Line count
%d        Like %D but with description
%E        Content encoding
%e        Like %E but with description
%F        Current YENC part
%f        Like %F but with description
%G        Total number of YENC parts
%g        Like %G but with description
%I        Complete/incomplete UUE/YENC part indicator
%L        Language
%l        Like %L but with description
%N        Name
%n        Like %N but with description
%S        Content subtype
%s        Like %S but with description
%T        Content type
%t        Like %T but with description
%V        Size of the current YENC part in bytes
%v        Like %V but with description
%W        Total size of all YENC parts in bytes
%w        Like %W but with description
%X        CRC checksum of current yenc part
%x        Like %X but with description
%Z        Size in bytes
%z        Like %Z but with description
%%        %

Not all items can be used in each variable. The following table provides an overview:

 | attachment_format | page_mime_format | page_uue_format | page_yenc_format
%C | X | X |  |
%c | X | X |  |
%D | X | X | X | X
%d | X | X | X | X
%E | X | X | X | X
%e | X | X | X | X
%F |  |  |  | X
%f |  |  |  | X
%G |  |  |  | X
%g |  |  |  | X
%I |  |  | X | X
%L | X | X |  |
%l | X | X |  |
%N |  | X | X | X
%n |  | X | X | X
%S | X | X | X | X
%s | X | X | X | X
%T | X | X | X | X
%t | X | X | X | X
%V |  |  |  | X
%v |  |  |  | X
%W |  |  |  | X
%w |  |  |  | X
%X |  |  |  | X
%x |  |  |  | X
%Z | X | X | X | X
%z | X | X | X | X
%% | X | X | X | X

By default, the string is not truncated. If it exceeds the screen width, it is wrapped. If the % sign is followed by an exclamation mark ('!') for uppercase letters, the element is omitted if there is not enough space. If the % sign is followed by an asterisk ('*') for a lowercase letter, the description is omitted if there is not enough space. If the % sign is followed by an exclamation mark ('!') for a lowercase letter, the description is omitted first and then the content. The shortening is always from right to left, first the description is omitted and when no more description is displayed, the content is omitted. If %T and %S, %F and %G or %V and %W follow each other directly a '/' will be inserted in between. %Z will always have one decimal point and may have a one letter bi-suffix.

Defaults for the format strings:

attachment_format:	"%T%S%E%C%d"
page_mime_format:		"[-- %T%S%*n%z%*l%!c%!d%*e --]"
page_uue_format:		"[-- %T%S%*n%I%!d%*e --]"
page_yenc_format:		"[-- %*N%!d%I [%F%G]%V%W%X --]"

  TIPS AND TRICKS
tin can be pretty much be navigated by using the four cursor keys. The left arrow key goes up a level, the right arrow key goes down a level, the up arrow key goes up a line and the down arrow key goes down a line.

The following newsgroups provide useful information concerning news software:
—news.software.readers (info. about news user agents tin, rn, nn, slrn etc.)
—news.software.nntp (info. about NNTP)
—news.answers (Frequently Asked Questions (FAQ) about many different themes)

Many prompts within tin offer a default choice that the cursor is positioned on. By pressing '<CR>' the default value is taken. Most prompts can be aborted by pressing '<ESC>'.

When tin is run in an xterm(1x) it will resize itself each time the xterm(1x) is resized.

tin will reread the ${TIN_LIBDIR:-NEWSLIBDIR}"/"${TIN_ACTIVEFILE:-active} file at set intervals (reread_active_file_secs) to show any newly arrived news.

If you find large number of new newsgroups cluttering up your screen, pressing SelectToggleReadDisplay ('r') will make them go away.

  XTERM BUTTONS
If the environment variable $TERM is set to xterm(1x), then button pressing can be used to select groups and articles. In this discussion, the buttons are assumed to be assigned conventionally (i.e., Button1 is the left button).

In general (i.e., for the group, thread and article menus),

Button1 (left)
    enters next (lower) level if you click on an article, otherwise pages down.

Button2 (center)
    returns to the previous (upper) level if you click on an article, otherwise pages up.

Button3 (right)
    positions on the article line under mouse cursor, or pages down if you've clicked outside the list of articles.

In the group selection menu, if the mouse is pointing at a group then:

left button
    moves to and selects the group pointed at, just like SelectReadGrp ('<CR>').

center button
    quits the program, just like Quit ('q').

right button
    moves to the group pointed at.

In the article menu, if the mouse is pointing at an article (or thread) then:

left button
    reads the article pointed at, just like GroupReadBasenote ('<CR>'), or the thread, just like GroupListThd ('l').

center button
    exits the menu, catching up on the group if you have group_catchup_on_exit set in your configuration, just like Quit ('q').

right button
    moves to the article (or thread) pointed at.

In the thread menu, if the mouse is pointing at an article then:

left button
    reads article pointed at, just like ThreadReadArt ('<CR>').

center button
    exits the menu, catching up on the thread if you have thread_catchup_on_exit set in your configuration, just like Quit ('q').

right button
    moves to the article pointed at.

In other menus and areas button pressing reverts back to usual cut and paste of xterm(1x), but after one click of any button.

  INDEX FILES
If your news server supports NOV index files (see newsoverview(5), most modern installations will) and you have a fast connection to your news server then this section can be ignored.

If your news server doesn't support NOV index files or you have a very slow connection to your news server then tin can cache the index for each newsgroup if cache_overview_files is set to ON. Note that this cache can use up large amounts of disk space if you read a lot of groups and/or high traffic groups. To reduce the amount of disk space used, compress_overview_files can be set to ON. Be aware that the use of getart_limit will disable cache_overview_files.

Each user creates/updates his/her own index files that are stored in ${TIN_INDEX_NEWSDIR:-"${TIN_HOMEDIR:-"$HOME"}/.tin"}/.news/. If you are reading via NNTP then the news server name will be appended to keep the indexes for different servers separate. If you are reading off the local spool and local overview files already exist then turning on caching will have no effect. Likewise unless you see significant delays entering a group when reading via NNTP then turning on caching will have little or no effect.

Entering a group the first time tends to be slow because the index file must be built from scratch. To alleviate the slowness start tin to create all index files for the groups you subscribe to with tin -u -v and go for a coffee. Subsequent readings of a group will only need to do incremental updating of the index file and will be much faster as only new articles will need to be cached.

As indexing might take some time you may want to run tin from the system batcher cron(8) with the ''-u'' option:

    30 6 * * * /usr/local/bin/tin -u

If you are low on local disk space you should consider to manually purge cached data for groups you are not reading anymore with something like:

    find ${TIN_INDEX_NEWSDIR:-"${TIN_HOMEDIR:-"$HOME"}/.tin"}/.news* \
    -type f -name "[0-9]*.[0-9]" -atime +28 | xargs rm -f

FILES
For a detailed description see tin(5).

$MAILCAPS
~/.mailcap
/etc/mailcap
/usr/etc/mailcap
/usr/local/etc/mailcap
/etc/mail/mailcap

/etc/nntpserver

${TIN_HOMEDIR:-"$HOME"}/.cancelsecret

${TIN_HOMEDIR:-"$HOME"}/.mime.types
/etc/mime.types
/etc/tin/mime.types

${TIN_HOMEDIR:-"$HOME"}/.newsauth

${TIN_HOMEDIR:-"$HOME"}/.newsrc

${TIN_HOMEDIR:-"$HOME"}/.tin/$NNTPSERVER/.oldnewsrc

${TIN_HOMEDIR:-"$HOME"}/.signature
${TIN_HOMEDIR:-"$HOME"}/.Sig

${TIN_HOMEDIR:-"$HOME"}/.sigfixed

${TIN_HOMEDIR:-"$HOME"}/.tin/.inputhistory

${TIN_INDEX_MAILDIR:-"${TIN_HOMEDIR:-"$HOME"}/.tin"}/.mail/

${TIN_INDEX_NEWSDIR:-"${TIN_HOMEDIR:-"$HOME"}/.tin"}/.news${NNTPSERVER:+"-$NNTPSERVER"}/

${TIN_INDEX_SAVEDIR:-"${TIN_HOMEDIR:-"$HOME"}/.tin"}/.save/

${TIN_HOMEDIR:-"$HOME"}/.tin/active.mail

${TIN_HOMEDIR:-"$HOME"}/.tin/active.save

/etc/tin/attributes
${TIN_HOMEDIR:-"$HOME"}/.tin/attributes

${TIN_HOMEDIR:-"$HOME"}/.tin/filter

${TIN_HOMEDIR:-"$HOME"}/.tin/keymap${${LC_ALL:-"${LC_MESSAGES:-"${LC_CTYPE:-"$LANG"}"}"}:+".${LC_ALL:-"${LC_MESSAGES:-"${LC_CTYPE:-"$LANG"}"}"}"}
/etc/tin/keymap${${LC_ALL:-"${LC_MESSAGES:-"${LC_CTYPE:-"$LANG"}"}"}:+".${LC_ALL:-"${LC_MESSAGES:-"${LC_CTYPE:-"$LANG"}"}"}"}

${TIN_HOMEDIR:-"$HOME"}/.tin/mailgroups

${TIN_HOMEDIR:-"$HOME"}/.tin/newsrctable

${TIN_HOMEDIR:-"$HOME"}/.tin/posted

${TIN_HOMEDIR:-"$HOME"}/Mail/posted

${TIN_HOMEDIR:-"$HOME"}/.tin/postponed.articles

${TIN_HOMEDIR:-"$HOME"}/.tin/$NNTPSERVER/motd

${TIN_HOMEDIR:-"$HOME"}/.tin/$NNTPSERVER/msglog

${TIN_HOMEDIR:-"$HOME"}/.tin/$NNTPSERVER/newsgroups

${TIN_HOMEDIR:-"$HOME"}/.tin/$NNTPSERVER/serverrc

/etc/tin/tinrc
${TIN_HOMEDIR:-"$HOME"}/.tin/tinrc

/etc/tin/tin.defaults

/usr/local/share/locale/${LC_MESSAGES}/LC_MESSAGES/tin.mo

${TIN_LIBDIR:-NEWSLIBDIR}"/"${TIN_ACTIVEFILE:-active}

${TIN_LIBDIR:-NEWSLIBDIR}/active.times

${TIN_LIBDIR:-NEWSLIBDIR}/newsgroups

${TIN_LIBDIR:-NEWSLIBDIR}/organization

${TIN_LIBDIR:-NEWSLIBDIR}/overview.fmt

${TIN_LIBDIR:-NEWSLIBDIR}/subscriptions

ENVIRONMENT

TINRC
    Define this variable if you want to specify command-line options that tin should be started with to save typing them each time it is started. The contents of the environment variable are added to the front of the command-line options before it is parsed therefore allowing an option specified on the command-line to override the same option specified in the environment.

TIN_HOMEDIR
    Define this variable if you do not want the .tin directory in $HOME/. E.g., if you want all tin's private files in /tmp/.tin you would set $TIN_HOMEDIR to /tmp.

TIN_INDEX_NEWSDIR
    Define this variable if you do not want the .news directory in ${TIN_HOMEDIR:-"$HOME"}/.tin/. E.g., if you want all tin's news index files in /tmp/.news you would set $TIN_INDEX_NEWSDIR to /tmp.

TIN_INDEX_MAILDIR
    Define this variable if you do not want the .mail directory in ${TIN_HOMEDIR:-"$HOME"}/.tin/. E.g., if you want all tin's mail index files in /tmp/.mail you would set $TIN_INDEX_MAILDIR to /tmp.

TIN_INDEX_SAVEDIR
    Define this variable if you do not want the .save directory in ${TIN_HOMEDIR:-"$HOME"}/.tin/. E.g., if you want all tin's save index files in /tmp/.save you would set $TIN_INDEX_SAVEDIR to /tmp.

TIN_LIBDIR
    Define this variable if you want to override the NEWSLIBDIR path that was compiled into the tin binary, default is /usr/lib/news. If tin is running in NNTP mode setting this variable has no effect.

TIN_SPOOLDIR
    Define this variable if you want to override the SPOOLDIR path that was compiled into the tin binary, default is /var/spool/news. If tin is running in NNTP mode setting this variable has no effect.

TIN_NOVROOTDIR
    Define this variable if you want to override the NOVROOTDIR path that was compiled into the tin binary, default is SPOOLDIR (see above). If tin is running in NNTP mode setting this variable has no effect.

TIN_NOVFILENAME
    Define this variable if you want to override the OVERVIEW_FILE filename that was compiled into the tin binary, default is .overview. If tin is running in NNTP mode setting this variable has no effect.

TIN_ACTIVEFILE
    Define this variable if you want to override the NEWSLIBDIR/active path that was compiled into the tin binary. If tin is running in NNTP mode setting this variable has no effect. If $TIN_LIBDIR is set it is prepended to $TIN_ACTIVEFILE.

NNTPSERVER
    The default NNTP server to remotely read news from. This variable only needs to be set if the ''-r'' command-line option is specified and the file /etc/nntpserver does not exist. The ''-g'' command line option overrides $NNTPSERVER.

NNTPPORT
    The NNTP TCP-port to read news from. This variable only needs to be set if the TCP-port is not 119 (the default). The ''-p'' command-line option does override $NNTPPORT.

NNTPSPORT
    The NNTPS TCP-port to read news from. This variable only needs to be set if the TCP-port is not 563 (the default). The ''-p'' and ''-T'' command-line options do override $NNTPSPORT.

DISTRIBUTION
    Set the article header field ''Distribution:'' to the contents of the variable instead of the system default.

ISO2ASC
    Set the ISO to ASCII charset decoding table character to use in decoding an article text. Values can range from -1 to 5.

    -1  no conversion

    0   universal table for many languages

    1   single-spacing universal table

    2   table for Danish, Dutch, German, Norwegian and Swedish

    3   table for Danish, Finnish, Norwegian and Swedish using the appropriate ISO 646 variant

    4   table with RFC 1345 codes in brackets

    5   table for printers that allow overstriking with backspace

ORGANIZATION
    Set the article header field ''Organization:'' to the contents of the variable instead of the system default. If it points to a readable file a random line from that file will be used. If reading news on an Apollo DomainOS machine the environment variable $NEWSORG has to be used instead of $ORGANIZATION.

NEWSORG (DomainOS)
    DomainOS specific, same as $ORGANIZATION on other OSs (see above).

REPLYTO
    Set the article header field ''Reply-To:'' to the return address specified by the variable. This is useful if you wish to receive replies at a different address.

NAME
    Overrides the full name given in the gecos-field in /etc/passwd, see also mail_address.

REALNAME
    Same as $NAME but with lower priority.

HOME
    Pathname of the user's home directory. See environ(5) for more info.

MAILER
    This variable has precedence over the default mailer that is used in all mailing operations within tin.

MAIL
    Full path to the user's mailbox.

MAILPATH
    A colon-separated list of filenames which are checked for new mail. This overrides the $MAIL variable.

MAILDIR
    Full path to the user's maildir folder. This is only evaluated if neither $MAILPATH nor $MAIL are set.

VISUAL
    This variable has precedence over the default editor (i.e., vi(1)) that is used in all editing operations within tin (e.g., posting, replying, follow-ups, ...). Evaluation order is ${VISUAL:-"${EDITOR:-vi}"}. See environ(5) for more info.

EDITOR
    If $VISUAL is unset, then this variable is looked up for a default editor. If $EDITOR and $VISUAL are both unset, tin uses the systems default editor (i.e., vi(1) on UNIX-systems). See environ(5) for more info.

AUTOSUBSCRIBE
    A new group is checked against the list of patterns; if it matches, tin subscribes the user to the group without further query. See the section "NEWSGROUP LISTS & WILDCARDS" for an explanation of the valid syntax. For example, setting

    AUTOSUBSCRIBE=comp.os.unix.*,talk.*,!talk.politics.*

    will automatically subscribe the user to all new groups in the comp.os.unix hierarchy, and all talk groups other than talk.politics groups (which will be queried for as usual). Of course this does not work if tin is started with the ''-X'' command-line switch.

AUTOUNSUBSCRIBE
    Is handled like the $AUTOSUBSCRIBE variable, but groups matching the list are unsubscribed from without further query. For example, setting

    AUTOUNSUBSCRIBE=alt.flame.*,u*,!uk.*

    will automatically unsubscribe the user from all new alt.flame groups and all groups starting with u (university groups) other than UK groups (which will be queried for as usual).

TMPDIR
    A pathname of a directory made available for tin to create temporary files.

MAILCAPS
    This variable can be used to override the default path search for mailcap(5) files. See also tin(5).

NOMETAMAIL
    Set this variable to disable the use of metamail(1) or a replacement (e.g., metamutt).

MM_CHARSET
    MIME character set used if not configured via the tinrc variable mm_charset.

ISPELL
    Set this variable to point to ispell(1) or a replacement and its cmd-line options.

PGPOPTS
    Define any additional options that you wish to pass to your pgp(1) or gpg(1) program.

PGPPATH
    Override the name of the pgp(1) directory in $HOME that holds your keys etc..

GNUPGHOME
    Override the name of the gpg(1) directory in $HOME that holds your keys etc..

LC_CTYPE
    This variable determines the locale(5) category for character handling functions. Usually it determines the character classes for pattern matching character classification and case conversion. Currently this is not true for tin (which temporary unsets $LC_CTYPE right before any match is done to avoid confusion). Its value should be of the form language[_territory][.codeset][@modifier]. See environ(5) for more information.

LC_MESSAGES
    Formats of informative and diagnostic messages and interactive responses. Its value should be of the form language[_territory][.codeset][@modifier]. See locale(5) and environ(5) for more information.

LC_NUMERIC
    Numeric value formats. Its value should be of the form language[_territory][.codeset][@modifier]. See locale(5) and environ(5) for more information.

LC_TIME
    Date and time formats. Its value should be of the form language[_territory][.codeset][@modifier]. See locale(5) and environ(5) for more information.

LC_ALL
    This variable overrides the value of the $LANG variable and any other $LC_ variable. Its value should be of the form language[_territory][.codeset]. See locale(5) and environ(5) for more information.

LANG
    This variable determines the locale(5) category for any category not specifically selected with a variable starting with $LC_. Its value should be of the form language[_territory][.codeset]. See environ(5) for more information.

LANGUAGE
    This variable defines a priority list for translations. Whenever a translation is not available the next language from the list is tried. Its value should be of the form language:language[:language]. Requires $LC_ALL or $LANG to be set. See environ(5) for more information.

COLUMNS
    A decimal integer > 0 used to indicate the user's preferred width in column positions for the terminal screen or window. If this variable is unset or null, the implementation determines the number of columns, appropriate for the terminal or window. When $COLUMNS is set, any terminal-width information implied by $TERM will be overridden. Users and portable applications should not set $COLUMNS unless they wish to override the system selection and produce output unrelated to the terminal characteristics.

LINES
    A decimal integer > 0 used to indicate the user's preferred number of lines on a page or the vertical screen or window size in lines. A line in this case is a vertical measure large enough to hold the tallest character in the character set being displayed. If this variable is unset or null, the implementation determines the number of lines, appropriate for the terminal or window. When $LINES is set, any terminal-height information implied by $TERM will be overridden. Users and portable applications should not set $LINES unless they wish to override the system selection.

TERM
    The type of terminal in use. This is used when looking up termcap sequences. See environ(5) for more information.

DISPLAY
    Display name, pointing to the X server; required for xface.

WINDOWID
    Used for determining terminal's X window id; required for xface. Should be set by the terminal emulator.

SHELL
    The pathname of the user's login shell. Used to set default_shell_command.

XDG_RUNTIME_DIR
    The pathname of the user's dir to put non-essential run time files into.

SIGNALS
tin handles a couple of signals:

SIGHUP
    Terminate gracefully.

SIGTERM
    Terminate gracefully.

SIGUSR1
    Terminate gracefully but do not restore terminal (tty).

SIGUSR2
    Write out ${TIN_HOMEDIR:-"$HOME"}/.newsrc-file.

SECURITY
If tin is started in debug mode (''-D n'') it will create world readable files in $TMPDIR which may contain sensitive data like the users NNTP password in clear text (if running verbose). On multiuser-systems $TMPDIR should be set to a safe location before starting tin in (verbose) debug mode (e.g., TMPDIR=$HOME tin -vD NNTP).

Using the ''-k'' option to skip certificate verification makes the session insecure as the server's certificate is not checked; avoid this option whenever possible.

If the server does not initially require authentication but supports compression and compression is requested, tin will exit when authentication is required later on. Using the ''-A'' command line option in conjunction with ''-C'' circumvents this behavior.

CONFORMING TO
tin does conform to the Base Definitions volume of IEEE Std 1003.1-2008, Section 12, Utility Conventions (Utility Argument Syntax, Utility Syntax Guidelines).

NOTES
Regular expression support is provided by the PCRE library package pcre(3) or pcre2(3) which is open source software, written by Philip Hazel, and copyright © by the University of Cambridge, England.
<https://www.pcre.org/>

CAVEATS
Any existing global configuration files in /etc/tin/ are not updated automatically, as an ordinary user normally has no write permission at that location.

BUGS
CNews NNTPd , noffle(1) (<= V1.0-pre5) and NewsCache (<= V1.1.91) can't handle pipelined GROUP commands (RFC 3977). If you run into trouble with any of the mentioned historical servers set nntp_pipeline_limit in ${TIN_HOMEDIR:-"$HOME"}/.tin/$NNTPSERVER/serverrc to 1.

Early versions of NNTPCache (<= 2.3.2) and Leafnode (<= 1.6) had a buggy LISTGROUP implementation. If you run into trouble with any of the mentioned historical servers use the ''-n'' command-line flag (or disable LISTGROUP via disabled_nntp_cmds in ${TIN_HOMEDIR:-"$HOME"}/.tin/$NNTPSERVER/serverrc).

Using the ''-C'' (COMPRESS) flag with INN nnrpd versions between 2.6.1 and 2.7.1 (both incl.) may cause tin to hang and later timeout when used in conjunction with the ''-n'' flag or when posting. This has been fixed in INN nnrpd version 2.7.2. As a workaround simply don't use ''-C''.

Before mailing a bug-report to <tin-bugs@tin.org> please check if you are using the latest (stable) release, and if not, please upgrade first! Have a look at the doc/TODO file for known bugs. If you still think you've found a bug, please use the BugReport ('R') function and write in English. Please do NOT enclose a core-file in your bug-report until we request it.

HISTORY
tin is based on the tass(1) newsreader that was developed by Rich Skrenta and posted to alt.sources in March 1991; its first version was released on August 23rd 1991. tass(1) itself was heavily influenced by notesfiles a public domain UNIX version of PLATO Notes, developed at the University of Illinois by Ray Essick and Rob Kolstad in 1982. For a version overview see
<http://www.tin.org/history.html>.

CREDITS

Rich Skrenta
    author of tass(1) v3.2 which this newsreader used as its base.

Bill Davidsen
    author of envarg.c environment variable reading routine.

Mike Gleason
    author of sigfile.c random signature generation routines.

Markus Kuhn <Markus.Kuhn@cl.cam.ac.uk>
    author of langinfo.c, charset.c and iso2asc.txt ISO-8859-1 documentation.

Arnold D. Robbins
    author of strftime.c date formatting routine.

Rich Salz
    author of wildmat.c pattern matching and parsdate.y date parsing routines.

Dave Taylor
    author of curses.c from the elm(1) mailreader.

Chris Thewalt
    author of getline.c emacs(1) style editing routine.

Steven Madsen
    for adding pgp(1) (Pretty Good Privacy) support.

Philip Hazel <ph10@cam.ac.uk>
    for pcre(3), pcre2(3) (Perl-compatible regular expression library).

Mark Martinec <mark.martinec@ijs.si>
    for snprintf(3) and vsnprintf(3) fallbacks.

Gary S. Brown
    for crc32() fallback.

Enrik Berkhan
    for the NNTPS (NNTP over TLS) and COMPRESS implementation and its preconditions.

AUTHOR

Iain Lea <iain@bricbrac.de>

MAINTAINER

Urs Janssen <urs@tin.org>

SEE ALSO
elm(1), emacs(1), gpg(1), inews(1), ispell(1), lp(1), lpr(1), metamail(1), mutt(1), noffle(1), perl(1), perlre(1), pgp(1), rn(1), sendmail(1), shar(1), slrnface(1), tass(1), unshar(1), uudecode(1), vi(1), w2r.pl(1), xterm(1x), heapsort(3), iconv(3), iconv_open(3), nl_langinfo(3), pcre(3), pcre2(3), pcrepattern(3), pcre2pattern(3), qsort(3), snprintf(3), strftime(3), vsnprintf(3), wildmat(3), environ(5), locale(5), mailcap(5), mbox(5), mmdf(5), newsoverview(5), tin(5), cron(8), RFC 1345, RFC 1524, RFC 1952, RFC 2045, RFC 2046, RFC 2047, RFC 2231, RFC 2980, RFC 3156, RFC 3977, RFC 4155, RFC 4643, RFC 5198, RFC 5322, RFC 5536, RFC 5537, RFC 6048, RFC 6838, RFC 8054, RFC 8143, RFC 8315, RFC 9580