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#!/usr/bin/perl
# $Header: shmkill,v 4.0 91/03/20 01:14:20 lwall Locked $
# A script to call from crontab periodically when people are leaving shared
# memory sitting around unattached.
open(ipcs,'ipcs -m -o|') || die "Can't run ipcs: $!";
while (<ipcs>) {
$tmp = index($_,'NATTCH');
$pos = $tmp if $tmp >= 0;
if (/^m/) {
($m,$id,$key,$mode,$owner,$group,$attach) = split;
if ($attach != substr($_,$pos,6)) {
die "Different ipcs format--can't parse!\n";
}
if ($attach == 0) {
push(@goners,'-m',$id);
}
}
}
exec 'ipcrm', @goners if $#goners >= 0;
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