From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <c7d2c3dec82fd3dacd331c8d86c1c881@collyer.net>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] A prick into the wasps' nest ;-)
From: Geoff Collyer <geoff@collyer.net>
Date: Wed,  9 Jun 2004 16:55:59 -0700
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Right, rc is an abbreviation of runcom, which in turn comes from CTSS.

http://www.faqs.org/faqs/unix-faq/faq/part1/section-3.html
has a longer explanation.