source: trunk/third/perl/eg/shmkill @ 10724

Revision 10724, 596 bytes checked in by ghudson, 27 years ago (diff)
This commit was generated by cvs2svn to compensate for changes in r10723, which included commits to RCS files with non-trunk default branches.
Line 
1#!/usr/bin/perl
2
3# $RCSfile: shmkill,v $$Revision: 1.1.1.2 $$Date: 1997-11-13 01:47:45 $
4
5# A script to call from crontab periodically when people are leaving shared
6# memory sitting around unattached.
7
8open(ipcs,'ipcs -m -o|') || die "Can't run ipcs: $!";
9
10while (<ipcs>) {
11    $tmp = index($_,'NATTCH');
12    $pos = $tmp if $tmp >= 0;
13    if (/^m/) {
14        ($m,$id,$key,$mode,$owner,$group,$attach) = split;
15        if ($attach != substr($_,$pos,6)) {
16            die "Different ipcs format--can't parse!\n";
17        }
18        if ($attach == 0) {
19            push(@goners,'-m',$id);
20        }
21    }
22}
23
24exec 'ipcrm', @goners if $#goners >= 0;
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