Path: utzoo!utgpu!water!watmath!clyde!rutgers!cmcl2!brl-adm!brl-smoke!gwyn
From: gwyn@brl-smoke.ARPA (Doug Gwyn )
Newsgroups: comp.unix.questions
Subject: Re: Logging the ^d logoff
Message-ID: <7266@brl-smoke.ARPA>
Date: 16 Feb 88 19:51:57 GMT
References: <209@mccc.UUCP> <7255@brl-smoke.ARPA> <213@mccc.UUCP>
Reply-To: gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 6

Ok, here's a working version.  I chose to evaluate $LOGNAME when the trap
is set, to forestall any later forgery, but you can change this if you
wish, once you figure out the general principle by studying this example:

echo "IN:\t$LOGNAME\t`tty`\t`date`" >> /usr/.logins
trap "echo \"OUT:\t$LOGNAME\t\`tty\`\t\`date\`\" >> /usr/.logins" 0 1 15