System V Release 4.0 Developers

[Doug Gwyn]

In article <216100004 at s.cs.uiuc.edu> carroll at s.cs.uiuc.edu writes:
>I'm sorry, I missed something here. My understanding is that it is the OS
>that supports job control (or not), not the shell.

Actually, it's both.

>While sh doesn't deal with stopped/background jobs, ksh does,

On BSD systems.  Whether or not that is provided for SVR4.0 is a mystery.

>Is the BRL shell public domain, or obtainable for a
>nominal fee? Or do you have to have sh source first?

It's available free to anyone with a SVR2 or later source license.