Re: [TUHS] [COFF] Will someone please explain the history and usage of gpasswd / newgrp / sg?

Henry check out: http://gunkies.org/wiki/UNIX*_System_V_and_4.1C_BSD Page 25 describes the new BSD group and identifier scheme.

ᐧ On Mon, Nov 15, 2021 at 1:51 PM Clem Cole <clemc(a)ccc.com> wrote: > 3BSD has the V7 scheme, the new kernel code where there is a group list > in the process is not introduced until later/ > ᐧ > > On Mon, Nov 15, 2021 at 1:46 PM Henry Bent <henry.r.bent(a)gmail.com> > wrote: > >> On Mon, 15 Nov 2021 at 13:31, Clem Cole <clemc(a)ccc.com> wrote: >> >>> Grant, >>> >>> Mashey and crew basically did most of the original group work as part >>> of PWB. If you look at the Sixth Edition sources and the PWB 1.0 stuff, >>> that is one of the places you will find differences. With Seventh Edition >>> (or I believe as part of the UNIX/TS work that Ken picked up), the Mashey >>> group changes went back into the Research stream. With one of the >>> predecessors to 4.2BSD (it may have 4.1A or 4.1B but frankly I have >>> forgotten) Joy introduced the group scheme we all use today. >>> >>> >> Looking at the TUHS archives, unless I'm missing something, 3BSD has >> groups that appear to be in the modern format: >> >> % ls -l /bsd/3bsd/etc/group >> -r--r--r-- 1 root root 44 1980-01-02 22:08 /bsd/3bsd/etc/group >> % cat /bsd/3bsd/etc/group >> staff:*:10:bill,ozalp >> grad:*:20: >> prof:*:30: >> % find . -name 'chgrp*' | xargs ls -l >> -r-xr-xr-x 1 root root 6960 Dec 30 1979 ./usr/bin/chgrp >> -r--r--r-- 1 root root 26 Feb 12 1979 ./usr/man/man1/chgrp.1 >> -r--r--r-- 1 root root 754 Feb 12 1979 ./usr/src/cmd/chgrp.c >> >> -Henry >> >