[lsb-discuss] /usr/bin/env bash

Mark Hatle mhatle at mvista.com
Tue Aug 17 10:27:07 PDT 2004

Ignoring the Unix specification issues...

We use "#! /usr/bin/env bash" extensivly in our products.  Why?  because 
we have absolutly no idea where on the system the user has installed bash.

By using /usr/bin/env bash, we ensure that bash is run based on the 
users environment and not some hard coded (somewhat arbitrary location). 
  Same could be said for /bin/sh.

(while not speaking of the LSB.. on things like Solaris and other Unix 
(and Unix like) systems we support, /bin/sh is often barely usable as a 
shell.. which is the primary reason we use the /usr/bin/env bash 
trick... (after of course we have provided a bash to the environment... 
or at least verified there is one available.)


George Kraft wrote:
> If I remember correctly the UNIX specifications avoid specifying lines 
> like "#!/bin/sh" at the beginning of a shell script.   Is "/usr/bin/env" a 
> solution to this problem?
> http://www.research.att.com/sw/tools/uwin/man/man1/env.html
> George (gk4)
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