On Mon, 15 Nov 2021 at 13:56, Clem Cole wrote: > Henry check out: http://gunkies.org/wiki/UNIX*_System_V_and_4.1C_BSD > Page 25 describes the new BSD group and identifier scheme. > Ah, I see, thanks for the pointer: "System V uses the old V7/32V group scheme: a user may have access to a login group (specified in /etc/passwd) and also to several other groups (as permitted by /etc/group), but may be in only one group at a time." Looking at https://github.com/robohack/ucb-csrg-bsd/commits/master/usr.sbin/chown/chgrp.c , the commit stating "new with multiple groups" is dated March 5, 1982 which would put it around 4.1a. -Henry > ᐧ > > On Mon, Nov 15, 2021 at 1:51 PM Clem Cole 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 >> wrote: >> >>> On Mon, 15 Nov 2021 at 13:31, Clem Cole 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 >>> >>