prunehistory - Remove tokens from Usenet history file
] [-f filename
modifies a history
(5)-format text file to
"remove" a set of tokens from it. The tokens are removed by
overwriting them with spaces, so that the size and position of any following
entries does not change. This has an effect similar to expiring the article,
in that it is still mentioned in the history database but cannot be retrieved.
reads the standard input. The input is taken as a set of
lines. Blank lines and lines starting with a number sign ("#") are
ignored. All other lines should consist of a message-ID followed by zero or
more other fields (which are ignored). The message-ID is used as the
(3) key to get an offset into the text file. Since innd
appends to the text file, prunehistory
does not need to have any
interaction with it.
- prunehistory will normally complain about lines that
do not follow the correct format. If the -p flag is used, then the
program will silently print any invalid lines on its standard output.
(Blank lines and comment lines are also passed through.)
- -f filename
- The default name of the history file is
pathdb/history; to specify a different name, use the -f
Written by Rich $alz <email@example.com> for InterNetNews. Converted to
POD by Julien Elie.
$Id: prunehistory.pod 9447 2012-12-07 19:01:45Z eagle $