From: "Petr Vandrovec" <VANDROVE@vc.cvut.cz>
Organization: CC CTU Prague
To: mbm@mort.demon.co.uk
Date: Wed, 4 Dec 2002 20:22:46 +0100
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Subject: Re: [PATCH] Re: #! incompatible -- binfmt_script.c broken?
Cc: linux-kernel@vger.kernel.org
Message-ID: <9633612287A@vcnet.vc.cvut.cz>
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On  4 Dec 02 at 18:52, mbm@mort.demon.co.uk wrote:
> > single argument but strips trailing whitespace. NetBSD does the same as
> > Linux but passes trailing whitespace as part of the argument.
> 
> NetBSD is also broken, in that case.  Everything I ever used that
> supported #! except linux worked sensibly.  I even wrote myself
> a patch, which still applied to 2.4 fairly recently.  It's not
> perfect (has a fixed number of args to avoid allocating from the
> heap, would be easy to change), but it's functional.

Without adding support to parse " and ' it is unacceptable. I have
dozens of scripts which use argument with spaces inside... Also
all references I was able to found talks about "single optional
argument" (SCO, AIX)... Try running script containing

#! /bin/ls a b c

on your favorite system. If it will report
'/bin/ls: a b c: No such file or directory', or 
'ls: 0653-341 The file a b c does not exist', system does not split
argument on spaces. If it will talk about 'a' not found, it splits them
on spaces.

And because of I was not able to find anything in POSIX which would say
that we should do split on spaces (not that I found that we should not), 
I vote for leaving current behavior in Linux, and fixing perl manpage 
(and eventually FreeBSD, if anyone is interested) instead.
                                                    Petr Vandrovec
                                                    vandrove@vc.cvut.cz
                                                    
                                                    
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