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From: bob%ucla-locus@sri-unix.UUCP
Newsgroups: net.unix-wizards
Subject: Re: Should "su" change the USER environment variable?
Message-ID: <13197@sri-arpa.UUCP>
Date: Tue, 1-Nov-83 11:36:58 EST
Article-I.D.: sri-arpa.13197
Posted: Tue Nov  1 11:36:58 1983
Date-Received: Sun, 6-Nov-83 09:51:57 EST
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From:            Bob English <bob@ucla-locus>

Do you really know how to do a "layered login"?  If you invoke login
from the shell, it will overwrite /etc/utmp and the other person will
appear to be you forever more.  This is particularly interesting when
you log on as who ( or date or whatever).

--bob--

P.S. This is the case for 4.1bsd and v7.  If someone has fixed this, I
wouldn't mind hearing about it.