SVr3 csh

[Guy Harris]

>I got the C shell with SVR3.2 *directly* from AT&T and it's severly
>brain damaged.  Doesn't even have pushd/popd.  Someone told me
>AT&T picked it up from an old PDP-11 distribution and has never
>upgraded it.

Could be; a number of other systems seem to have done the same thing. 
Jeez, the 4.3BSD version one is certainly available to anybody with a
UNIX source license; I don't see why they're sticking with a crufty old
version.

S5R4 will have both the Korn and C shells; the latter will almost
certainly be based on a 4.3BSD-or-better version.