From: cyrille.lefevre-lists@laposte.net (Cyrille Lefevre)
Subject: [TUHS] History of #! interpretation in Unix
Date: Wed, 19 Jan 2011 05:10:33 +0100 [thread overview]
Message-ID: <4D366439.8020808@laposte.net> (raw)
In-Reply-To: <alpine.NEB.2.01.1101171232320.22444@t1.m.reedmedia.net>
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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
--
mailto:Cyrille.Lefevre-lists at laposte.net
next prev parent reply other threads:[~2011-01-19 4:10 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-16 8:43 Warren Toomey
2011-01-16 9:55 ` John Cowan
2011-01-16 13:20 ` Sven Mascheck
2011-01-16 17:17 ` John Cowan
2011-01-16 19:19 ` Sven Mascheck
2011-01-16 20:17 ` John Cowan
2011-01-16 20:42 ` Larry McVoy
2011-01-16 21:08 ` Sven Mascheck
2011-01-16 21:37 ` John Cowan
2011-01-17 16:35 ` Warner Losh
2011-01-17 20:47 ` John Cowan
2011-01-17 10:09 ` Tim Bradshaw
2011-01-16 10:53 ` Wilko Bulte
2011-01-17 16:25 ` Warner Losh
2011-01-17 19:02 ` Jeremy C. Reed
2011-01-17 20:51 ` John Cowan
2011-01-17 22:41 ` Jeremy C. Reed
2011-01-17 20:58 ` Sven Mascheck
2011-01-19 4:10 ` Cyrille Lefevre [this message]
2011-01-19 20:35 ` Sven Mascheck
2011-01-20 4:09 ` Cyrille Lefevre
2011-01-28 19:38 ` Jeremy C. Reed
2011-01-30 15:05 ` Sven Mascheck
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