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-.\" ========================================================================
-.\"
-.IX Title "EXPIREOVER 8"
-.TH EXPIREOVER 8 "2008-04-06" "INN 2.4.5" "InterNetNews Documentation"
-.SH "NAME"
-expireover \- Expire entries from the news overview database
-.SH "SYNOPSIS"
-.IX Header "SYNOPSIS"
-\&\fBexpireover\fR [\fB\-ekNpqs\fR] [\fB\-f\fR \fIfile\fR] [\fB\-w\fR \fIoffset\fR]
-[\fB\-z\fR \fIrmfile\fR] [\fB\-Z\fR \fIlowmarkfile\fR]
-.SH "DESCRIPTION"
-.IX Header "DESCRIPTION"
-\&\fBexpireover\fR expires old entries from the news overview database. It
-reads in a list of newsgroups (by default from \fIpathdb\fR/active, but a
-different file can be specified with the \fB\-f\fR option) and then removes
-from the overview database mentions of any articles that no longer exist
-in the news spool.
-.PP
-If \fIgroupbaseexpiry\fR in \fIinn.conf\fR is true, \fBexpireover\fR also removes
-old articles from the news spool according to the expiration rules in
-\&\fIexpire.ctl\fR. Otherwise it only removes overview entries for articles
-that have already been removed by some other process, and \fB\-e\fR, \fB\-k\fR,
-\&\fB\-N\fR, \fB\-p\fR, \fB\-q\fR, \fB\-w\fR, and \fB\-z\fR are all ignored.
-.PP
-When \fIgroupbaseexpiry\fR is set, the default behavior of \fBexpireover\fR is
-to remove the article from the spool once it expires out of all of the
-newsgroups to which it was crossposted. The article is, however, removed
-from the overview database of each newsgroup as soon as it expires out of
-that individual newsgroup. The effect is that an article crossposted to
-several groups will be removed from the overview database from each group
-one-by-one as its age passes the expiration threshold for that group as
-set in \fIexpire.ctl\fR, and then when it expires out of the last newsgroup,
-it will be deleted from the news spool.
-.PP
-Articles that are stored in self-expiring storage backends such as \s-1CNFS\s0
-are normally treated differently and not expired until they expire out of
-the backend regardless of \fIexpire.ctl\fR. See \fB\-N\fR, however.
-.PP
-By default, \fBexpireover\fR purges all overview information for newsgroups
-that have been removed from the server; this behavior is suppressed if
-\&\fB\-f\fR is given.
-.SH "OPTIONS"
-.IX Header "OPTIONS"
-.IP "\fB\-e\fR" 4
-.IX Item "-e"
-Remove articles from the news spool and all overview databases as soon as
-they expire out of any newsgroup to which they are posted, rather than
-retain them until they expire out of all newsgroups. \fB\-e\fR and \fB\-k\fR
-cannot be used at the same time. This flag is ignored if
-\&\fIgroupbaseexpiry\fR is false.
-.IP "\fB\-f\fR \fIfile\fR" 4
-.IX Item "-f file"
-Use \fIfile\fR as the newsgroup list instead of \fIpathdb\fR/active. \fIfile\fR
-can be \f(CW\*(C`\-\*(C'\fR to indicate standard input. Using this flag suppresses the
-normal purge of all overview information from newsgroups that have been
-removed from the server.
-.IP "\fB\-k\fR" 4
-.IX Item "-k"
-Retain all overview information for an article, as well as the article
-itself, until it expires out of all newsgroups to which it was posted.
-This can cause articles to stick around in a newsgroup for longer than the
-\&\fIexpire.ctl\fR rules indicate, when they're crossposted. \fB\-e\fR and \fB\-k\fR
-cannot be used at the same time. This flag is ignored if
-\&\fIgroupbaseexpiry\fR is false.
-.IP "\fB\-N\fR" 4
-.IX Item "-N"
-Apply \fIexpire.ctl\fR rules to expire articles even from storage methods
-that have self-expire functionality. This may remove articles from
-self-expiring storage methods before the articles \*(L"naturally\*(R" expire.
-This flag is ignored if \fIgroupbaseexpiry\fR is false.
-.IP "\fB\-p\fR" 4
-.IX Item "-p"
-By default, \fBexpireover\fR bases decisions on whether to remove an article
-on the arrival time on the server. This means that articles may be kept a
-little longer than if the decision were based on the article's posting
-date. If this option is given, expiration decisions are based on the
-article posting date instead. This flag is ignored if \fIgroupbaseexpiry\fR
-is false.
-.IP "\fB\-q\fR" 4
-.IX Item "-q"
-\&\fBexpireover\fR normally prints statistics at the end of the expiration
-process. \fB\-q\fR suppresses this report. This flag is ignored if
-\&\fIgroupbaseexpiry\fR is false.
-.IP "\fB\-s\fR" 4
-.IX Item "-s"
-\&\fBexpireover\fR normally only checks the existence of articles in the news
-spool if querying the storage method for that article to see if it still
-exists is considered \*(L"inexpensive.\*(R" To always check the existence of all
-articles regardless of how resource-intensive this may be, use the \fB\-s\fR
-flag. See \fIstorage.conf\fR\|(5) for more information about this metric.
-.IP "\fB\-w\fR \fIoffset\fR" 4
-.IX Item "-w offset"
-\&\*(L"Warps\*(R" time so that \fBexpireover\fR thinks that it's running at some time
-other than the current time. This is occasionally useful to force groups
-to be expired or not expired without changing \fIexpire.ctl\fR for the expire
-run. \fIoffset\fR should be a signed floating point number specifying the
-number of days difference from the current time to use as \*(L"now.\*(R" This
-flag is ignored if \fIgroupbaseexpiry\fR is false.
-.IP "\fB\-z\fR \fIrmfile\fR" 4
-.IX Item "-z rmfile"
-Don't remove articles immediately but instead write the path to the
-article or the token of the article to \fIrmfile\fR, which is suitable input
-for \fIfastrm\fR\|(1). This can substantially speed up deletion of expired
-articles for those storage methods where each article is a single file
-(such as tradspool and timehash). See the description of \fIdelayrm\fR in
-\&\fInews.daily\fR\|(8) for more details. This flag is ignored if
-\&\fIgroupbaseexpiry\fR is false.
-.IP "\fB\-Z\fR \fIlowmarkfile\fR" 4
-.IX Item "-Z lowmarkfile"
-Write the lowest article numbers for each newsgroup as it's expired to the
-specified file. This file is then suitable for \f(CW\*(C`ctlinnd lowmark\*(C'\fR. See
-\&\fIctlinnd\fR\|(8) for more information.
-.SH "EXAMPLES"
-.IX Header "EXAMPLES"
-Normally \fBexpireover\fR is invoked from \fInews.daily\fR\|(8), which handles such
-things as processing the \fIrmfile\fR and \fIlowmarkfile\fR if necessary.
-Sometimes it's convenient to manually expire a particular newsgroup,
-however. This can be done with a command like:
-.PP
-.Vb 2
-\& echo example.test | expireover \-f \- \-Z /usr/local/news/tmp/lowmark
-\& ctlinnd lowmark /usr/local/news/tmp/lowmark
-.Ve
-.PP
-This can be particularly useful if a lot of articles in a particular group
-have expired but the overview information is still present, causing some
-clients to see a lot of \*(L"this article may have been cancelled\*(R" messages
-when they first enter the newsgroup.
-.SH "HISTORY"
-.IX Header "HISTORY"
-Written by Rob Robertson <rob@violet.berkeley.edu> and Rich \f(CW$alz\fR
-<rsalz@uunet.uu.net> (with help from Dave Lawrence <tale@uunet.uu.net>)
-for InterNetNews.
-.PP
-$Id: expireover.8 7880 2008-06-16 20:37:13Z iulius $
-.SH "SEE ALSO"
-.IX Header "SEE ALSO"
-\&\fIactive\fR\|(5), \fIctlinnd\fR\|(8), \fIexpire\fR\|(8), \fIexpire.ctl\fR\|(5), \fIinn.conf\fR\|(5),
-\&\fInews.daily\fR\|(8).
~ian / inn-innduct.git / blobdiff