NAME

mkhistory - rebuild news history file

SYNOPSIS

/usr/local/libexec/cnews/maint/mkhistory [ -s sizemultiplier ]

DESCRIPTION

Mkhistory rebuilds the history file and its auxiliaries to match the articles in /var/news. Normally mkhistory uses a reasonable default size for the dbz(3Z) index database; if the -s option is given, the expected number of entries in the history database is taken to be the number of articles found in /var/news times sizemultiplier.

Mkhistory is fairly slow and locks the whole news system for the duration of the run, so it should not be run casually.

FILES

/var/lib/news/history	history file
/var/lib/news/history.pag	dbm database for history file
/var/lib/news/history.dir	dbm database for history file
/var/lib/news/history.n*	new history file and dbm files abuilding
/usr/local/libexec/cnews/maint/*	various auxiliaries

SEE ALSO

dbm(3Z), expire(8CN)

HISTORY

Written at U of Toronto by Henry Spencer.

BUGS

Mkhistory is inherently incapable of reconstructing history-file lines corresponding to expired articles. Protection against old articles reappearing is thus somewhat limited for a while after the history file is rebuilt.