[TUHS] History of #! interpretation in Unix
Jeremy C. Reed
reed at reedmedia.net
Tue Jan 18 05:02:48 AEST 2011
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
And the usr/src/sys/newsys/sys1.c has explanation of it and source code.
This seems to indicate the idea was not developed separately at
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).
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