Is ksh in public domain?

[Stephen J. Friedl]

Lawrence V. Cipriani writes:
< Mario Dorion asks:
< > I would Like to know if the korn shell is in the public
< > domain in any way.
< 
< No.  The source code from AT&T will cost you somewhere around $25,000.

While it is not in the public domain, it is not that expensive
either.  The source to ksh-i (the international version) is
available from the AT&T Toolchest for $3000, and the binary
relicensing fee (needed only to resell binaries) is $20,000.
Those not familiar with the Toolchest can call (201) 522-6900 @
1200bps, login is "guest", no password.

Note that porting ksh is not at all a task for the novice; it is
not (to put it politely) "maximally portable".

-- 
Steve Friedl      V-Systems, Inc. (714) 545-6442       3B2-kind-of-guy
friedl at vsi.com      {backbones}!vsi.com!friedl      attmail!vsi!friedl