On Mon, 27 Jun 2016, Warren Toomey wrote:
I wrote a shell quite a while ago, based on a
friend's shell and also the shell in Marc Rochkind's book. It was portable
across a lot of systems but small enough to fit on Minix.
I used ptrace() to implement job control on Minix. See
ftp://minnie.tuhs.org/pub/Wish/wish_internals.pdf
Cheers, Warren
I tried a couple times to figure out how to implement a Bourne shell, and
just couldn't figure it out. But then, I was never much of a programmer.
-uso.