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/usr/bin/env

This page is part of the web mail archives of SRFI 22 from before July 7th, 2015. The new archives for SRFI 22 contain all messages, not just those from before July 7th, 2015.



I just found on http://www.bluetail.com/~joe/escript.html an
interesting approach to write the "#!" line of a script.  The idea is
to call up /usr/bin/env, and then it starts the script-interpreter
with the command line arguments:

   #! /usr/bin/env script-interpreter
   ...

The advantage I can see is that there is no need to give an absolute
path for the script-interpreter (PATH is searched), and /usr/bin/env
may be a more "standard" path than say
/usr/local/bin/script-interpreter .  It is also probably faster than
the /bin/sh trampoline.

Anybody have experience, or comments about this?  Is /usr/bin/env
"standard" or POSIX?

Marc