GNU bug report logs - #61094
[PATCH] doc: Document 'shebang' for 'guix shell'.

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Message #17 received at 61094 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: Morgan Smith <Morgan.J.Smith <at> outlook.com>
Cc: 61094 <at> debbugs.gnu.org, Liliana Marie Prikler <liliana.prikler <at> gmail.com>,
 zimoun <zimon.toutoune <at> gmail.com>
Subject: Re: bug#61094: [PATCH] doc: Document 'shebang' for 'guix shell'.
Date: Thu, 16 Mar 2023 12:09:11 +0100

Hi,

Morgan Smith <Morgan.J.Smith <at> outlook.com> skribis:

>>>> +@example
>>>> +#!/usr/bin/env -S guix shell python python-nympy -- python3
>>>> +@end example
>
> Apparently, according to POSIX you're only allowed one argument on the
> '#!' line after the path of the executable.  I haven't confirmed this
> myself but it is in the guile manual, section 4.3.2 "The Meta Switch".
>
> One argument does seem quite limiting though so I wonder if anyone
> actually imposes that limit.

Yes, and ‘env -S’ is used to work around that limitation by splitting
that one argument.  It’s a GNU extension, which is fine in this context.

Ludo’.

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