[TUHS] History of cal(1)?

[jason-tuhs--- via TUHS]

> Heck; at one time the "true" command was a Shell script with a huge 
> copyright notice, followed by... nothing...  (The "false" script 
> actually had "exit 1" at the end.)

>From http://web.42.net/true.html

==========================================================================
cat /bin/true

#     Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T;
#       All Rights Reserved

#     THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T;
#     The copyright notice above does not evidence any
#     actual or intended publication of such source code.

#ident  "@(#)true.sh    1.6     93/01/11 SMI"   /* SVr4.0 1.4   */



I'm not sure what I like most.  The fact that they're claiming strict
copyright on a file that is all comments?  The fact that they're up to
version 1.6 of all-comments, after five years of development?  Or the fact
that the GNU version had to be rewritten (due to the above copyright), and
thus actually offers three times as much functionality?

==========================================================================


  -Jason