[COFF] [TUHS] Will someone please explain the history and usage of gpasswd / newgrp / sg?
arnold at skeeve.com
arnold at skeeve.com
Tue Nov 16 06:17:09 AEST 2021
Clem Cole <clemc at ccc.com> wrote:
> I'm sure it was used in many other ways, but that was certainly one scheme
> we used at UCB when wnj added them. Again check the 4.2 docs, where the
> BSD group scheme is explained. This did seem useful and System V picked
> it up also fairly soon after BSD released it to the world, and fortunately
> did not change the BSD semantics.
Not so soon, really. The new group scheme was widely released with
4.2 BSD (~ 1983). System V didn't pick up multiple groups until
System V Release 4, circa 1989.
Arnold
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