Why is csh `restricted'?
wkt at henry.cs.adfa.edu.au
Tue Jan 5 15:50:06 AEST 1999
In article by Warren Toomey:
> In article by Steven M. Schultz:
> > > So, can anybody tell me if, when and how did the sources to csh become
> > > restricted, or if not, how this urban legend arose??
> > It is not that they "became" restricted. They always "were" restricted
> > because they were derived from the original Bell Labs (later AT&T)
> > sources (code borrowed from /bin/sh). All UNIX sources were, up until
> > you negotiated the deal with SCO, restricted.
> > Steven
Steven is right. An investigation into the csh from 2bsd shows that it
is derived from the Mashey shell in 6th Edition UNIX, but not from the
Bourne shell in 7th Edition.
Hmm, I'll have to go and update my UNIX family tree now.
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