19 Jan
2011
19 Jan
'11
5:10 a.m.
Le 17/01/2011 20:02, Jeremy C. Reed a écrit :
4BSD (4.0) usr/src/sys/sys/TODO (of Nov. 9, 1980) says it was planned:
6. Exec fixes
Implement dmr's #! feature; pass string arguments through
faster.
And the usr/src/sys/newsys/sys1.c has explanation of it and source code.
http://minnie.tuhs.org/cgi-bin/utree.pl?file=4BSD/usr/src/sys/sys/TODO
http://minnie.tuhs.org/cgi-bin/utree.pl?file=4BSD/usr/src/sys/newsys/sys1.c
This seems to indicate the idea was not developed separately at
Berkeley.
It was introduced into BSD by April 1981. 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).
Hi,
yet another reference but more in the spirit of what csh does, it only
checks for a simple hash (#), no explaim mark (!), and is enclosed in
UCB_SCRIPT define.
http://minnie.tuhs.org/cgi-bin/utree.pl?file=2.9BSD/usr/src/sys/sys/sys1.c
2.11 BSD seems to have an enhanced version of this feature in the sense
where the shell path may be followed by some arguments (i.e.: /bin/sh -x)
http://minnie.tuhs.org/cgi-bin/utree.pl?file=2.11BSD/sys/sys/kern_exec.c
Regards,
Cyrille Lefevre
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