17 Jan
2011
17 Jan
'11
9:58 p.m.
Jeremy C. Reed wrote:
4BSD (4.0) usr/src/sys/sys/TODO (of Nov. 9, 1980)
says it was planned:
It was not until now that I noticed that the subject is _that_ general :)
I had already tried to completely collect all the interesting pieces
available through TUHS (and the CSRG archive) on a page as I mentioned
earlier in this thread. But I'd like to tie in with
For 2BSD (2.8) it was added by Dec. 16, 1981 when
built with
MENLO_SCRIPT defined (but I don't see that documented or defined).
According to /usr/kernel/src/cmd/standalone/tapes/instructions
these seem to be fixes from the U.S. Geological Survey in Menlo Park,
perhaps by Bill Jolitz. The code looks different from 4BSD, because
2.8BSD was a 7th ed kernel with several adds+fixes (all to be activated
by macros like the above). I don't know yet how #! was created/derived
here, exactly - which remindes me that I don't know how the original
implementation (research unix) looked exactly. I always had the impression
that 4.0BSD newsys/sys1.c already had been adjusted to BSD...