Relative speed of Bourne vs. C Shell

[Doug Gwyn <gwyn>]

> The System V Bourne shell has "test" and other functions built in.  This
> improves its performance.  Now, if someone would port this to 4.2...

We have done this at BRL (and Ron Natalie even added job control).
Unfortunately, last I heard, Berkeley did not have a UNIX System V
license so they could not include UNIX System V source in their
distribution.