overchan - update the news overview database
overchan [ -D dir ] [ -c ] [ file... ]
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 <config$_PATH_OVERVIEW> in a
newsgroup directory within the overview database tree.
Overchan locks the database file (by locking an auxiliary file) before
appending the new data. To purge data after articles have been expired,
see expireover(8) .
By default, overchan processes its input as an INN overview stream
written as a ``WO'' entry in the newsfeeds(5) file, for example:
This data consists of a line of text, separated into two parts by a tab.
The first part is a list of all relative pathnames where the article has
been written, with a single space between entries. The second part is
the data to be written into the overview file, except that the initial
article number is omitted. The data in the overview files should be
expired by running expireover(8) . This is normally done by adding the
``expireover'' flag to the news.daily(8) invocation.
-c To process the output of the mkov(8) program, use the ``-c'' flag.
This format is described in the ``nov'' distribution.
-D The ``-D'' flag can be used to specify where the databases are
stored. The default directory is <config$_PATH_OVERVIEWDIR>.
Written by Rob Robertson <firstname.lastname@example.org> and Rich $alz
<email@example.com> for InterNetNews. This is revision 1.9, dated
expireover(8) , news.daily(8) , newsfeeds(5) , newsoverview(5),
You can find a summary and links related to this topic
as part of the Mib Software Usenet RKT.