Date   : Wed, 18 Jul 1984 22:14:00 MDT (Wed)
From   : Richard Conn <RCONN@Simtel20.ARPA>
Subject: booting in different user areas

Isaac,

       The book will include all of those internal details.  There is
a package devoted to shells (how they work, how to write one, etc) and
a new Phase 2 utility  can make ANY COMMAND SEQUENCE [which is short]
into a shell!  Like, DDT can be a shell ... your favorite editor ...
etc, etc.

               Rick