Provided by: inn_1.7.2debian-32_i386 bug

NAME

       overchan - update the news overview database

SYNOPSIS

       overchan [ -D dir ] [ -c ] [ file...  ]

DESCRIPTION

       Overchan  reads  article  data from files or standard input if none are
       specified.  (A single dash in the file  list  means  to  read  standard
       input.)  It uses this information to update the news overview database.
       Overchan is designed to be used by InterNetNews or the C News  ‘‘mkov’’
       packages  to update the database as the articles come in.  The database
       for each newsgroup is stored in a file named .overview in  a  newsgroup
       directory within the overview database tree.

       Overchan  locks the database file (by locking an auxiliary file) before
       appending the new  data.   To  purge  data  after  articles  have  been
       expired, see expireover(8).

       By  default,  overchan  processes  its  input as an INN overview stream
       written as a ‘‘WO’’ entry in the newsfeeds(5) file, for example:

              overview:*:Tc,WO:/usr/lib/news/bin/overchan

       This data consists of a line of text, separated into  two  parts  by  a
       tab.   The  first  part  is  a list of all relative pathnames where the
       article has been written, with a single  space  between  entries.   The
       second  part  is  the data to be written into the overview file, except
       that the initial article number is omitted.  The data in  the  overview
       files  should  be  expired  by running expireover(8).  This is normally
       done by adding the ‘‘expireover’’ flag to the news.daily(8) invocation.

OPTIONS

       -c     To  process  the  output  of the mkov(8) program, use the ‘‘-c’’
              flag.  This format is described in the ‘‘nov’’ distribution.

       -D     The ‘‘-D’’ flag can be used to specify where the  databases  are
              stored.  The default directory is /var/spool/news/over.view.

HISTORY

       Written  by  Rob  Robertson  <rob@violet.berkeley.edu>  and  Rich  $alz
       <rsalz@uunet.uu.net> for InterNetNews.  This  is  revision  1.9,  dated
       1996/10/29.

SEE ALSO

       expireover(8),     news.daily(8),     newsfeeds(5),    newsoverview(5),
       newsoverview(8).

                                                                   OVERCHAN(8)