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From: Arthur Davis <adavis@torrentnet.com>
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Subject: buffer uid
Date: Fri, 10 Oct 2003 13:48:14 -0400
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Is it possible to open a buffer and edit it as a different user?  In
other words, if I have two user accounts, can I run emacs from one
account and edit a file owned by the other account (and not writable
by the account running emacs)?