Re: Mercurial 0.4b vs git patchbomb benchmark

[Bill Davidsen]

Linus Torvalds wrote:
> On Mon, 2 May 2005, Bill Davidsen wrote:
>
> > > -#!/usr/bin/python
> > > +#!/usr/bin/env python
>
>
> > Could you explain why this is necessary or desirable? I looked at what 
> > env does, and I am missing the point of duplicating bash normal 
> > behaviour regarding definition of per-process environment entries.
>
>
> It's not about environment.
>
> It's about the fact that many people have things like python in
> /usr/local/bin/python, because they compiled it themselves or similar.
>
> Pretty much the only path you can _really_ depend on for #! stuff is 
> /bin/sh.
>
> Any system that doesn't have /bin/sh is so fucked up that it's not worth
> worrying about. Anything else can be in /bin, /usr/bin or /usr/local/bin
> (and sometimes other strange places).
>
> That said, I think the /usr/bin/env trick is stupid too. It may be more 
> portable for various Linux distributions, but if you want _true_ 
> portability, you use /bin/sh, and you do something like
>
> 	#!/bin/sh
> 	exec perl perlscript.pl "$@"
>
> instead.
> 		Linus
And that eliminates the need for having /usr/bin/env in the "expected" 
place. I like it.

Wish there was a way to specify "use path" without all this workaround.

--
   -bill davidsen (davidsen@xxxxxxx)
"The secret to procrastination is to put things off until the
 last possible moment - but no longer"  -me

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