applyfilter man page on Mandriva

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applyfilter(8)							applyfilter(8)

NAME
       applyfilter - apply filter settings to news spool

SYNOPSIS
       applyfilter [-v] ... newsgroup

DESCRIPTION
       Leafnode	 is a USENET package intended for small sites, where there are
       few users and little disk space, but where a large number of groups  is
       desired.

       Applyfilter  is the program to apply filter settings to your newsspool,
       particularly after changes that were not in  effect  at	the  time  the
       articles	 were  downloaded  with	 fetchnews. Applyfilter is used if you
       want to remove postings from your spool matching a certain filter  pat‐
       tern  (see  FILES below). If the headers of an article match any of the
       filtering rules, the article is being deleted from the newsgroup.

       Applyfilter sets its real and effective uid to "news".

OPTIONS
       -v     Be verbose.

       newsgroup
	      is the newsgroup you want to apply the filter to.

FILES
       A file specified in the filterfile option of /etc/leafnode/config  con‐
       tains  the  set	of  filtering rules that are applied to the newsspool.
       Each rule must be on a separate line. Empty lines and comments  (marked
       by a # which MUST be at the beginning of the line) are allowed and will
       be ignored.

       Each line contains a regular expression that will be compiled with  the
       PCRE_MULTILINE  option  set  (unless  it	 is a comment line or an empty
       line). Every regular expression applied to  the	whole  message	header
       (folded	message	 headers  are unfolded before the match is attempted).
       If any regular expression matches the header, the posting gets removed.
       For  example,  the following set of rules will delete all crosspostings
       to alt.flame.

       ^Newsgroups:.*[, ]alt.flame$
       ^Newsgroups:.*[, ]alt.flame,

       ^Newsgroups: indicates that the pattern should only be applied  to  the
       Newsgroups: header. After the header, an arbitrary number of characters
       may follow, ending in either a comma or a space. After that,  alt.flame
       must  be in the line, either at the end of the line (first entry) or in
       the middle of the line, followed by other newsgroups (second entry).

       Unfortunately, regular expressions are a complex matter and outside the
       scope  of  this document. Please see the manual pages provided with the
       PCRE library for details.

       Note that some leafnode programs (such as fetchnews)  feed  the	header
       line by line to the regexp (after unfolding), others (such as applyfil‐
       ter) feed the whole header in one large blob.  This  does  not  usually
       matter because patterns are compiled in multiline mode, but will matter
       if you're trying to match multiple headers in the same regexp  --  this
       would work with applyfilter, but not with fetchnews.

ENVIRONMENT
       LN_LOCK_TIMEOUT
	      This  variable is parsed as an unsigned integer value and deter‐
	      mines how many seconds applyfilter  will	wait  when  trying  to
	      obtain  the  lock file from another leafnode program. 0 means to
	      wait indefinitely. This variable takes precedence over the  con‐
	      figuration file.

AUTHOR
       Copyright 1999 by Cornelius Krasel <krasel@wpxx02.toxi.uni-
       wuerzburg.de>.
       Copyright 2002 - 2006 by Matthias Andree <matthias.andree@gmx.de>.

       Leafnode was originally written by Arnt Gulbrandsen <agulbra@troll.no>
       and is copyright 1995-96 Troll Tech AS, Postboks 6133 Etterstad, 0602
       Oslo, Norway, fax +47 22646949.

SEE ALSO
       pcrepattern(3), leafnode(8), fetchnews(8), texpire(8).

leafnode			    1.11.7			applyfilter(8)
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