1 files changed, 24 insertions, 0 deletions
diff --git a/gnu/usr.bin/perl/eg/shmkill b/gnu/usr.bin/perl/eg/shmkill
new file mode 100644
index 0000000..e8d1b11
--- /dev/null
+++ b/gnu/usr.bin/perl/eg/shmkill
@@ -0,0 +1,24 @@
+#!/usr/bin/perl
+
+# $Header: /home/cvs/386BSD/ports/lang/perl/eg/shmkill,v 1.1.1.1 1993/08/23 21:29:43 nate Exp $
+
+# 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;