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Groups > linux.kernel > #1411192

Re: script relative shebang

From Bernd Petrovitsch <bernd@petrovitsch.priv.at>
Newsgroups linux.kernel
Subject Re: script relative shebang
Date 2016-06-01 15:20 +0200
Message-ID <rFedX-qG-3@gated-at.bofh.it> (permalink)
References <rEZHX-7YV-1@gated-at.bofh.it> <rF0Xo-s6-13@gated-at.bofh.it> <rF9nY-5Ug-39@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Hi all!

On Wed, 2016-06-01 at 09:00 +0100, Boris wrote:
[...]
> Yes, I think this is too ugly:
> 
> #!/usr/bin/gawk {exit system("/bin/sh -c 'exec \"$(dirname
> \"$0\")\"/subdir/catself \"$0\"' " FILENAME);}

The simplest solution for an application today is to provide a wrapper
script/program (to be placed in /usr/bin or /usr/local/bin) which knows
where to search for the applications executables - if adding some
directories to $PATH is not enough.

> Imagine you have that feature in your kernel would you rather use:
> 
> #!{dirname}/subdir/catself

And what if "{dirname}" (or any other character sequence) happens to be
a valid pathname?

> You second advice involves changing root fs which is not desirable in
> copy-deployment apps (bring all the dependencies)
> 
> This more about making kernel "user" friendly.

User-friendlyness is not the job of the kernel ...

[ Fullquote deleted as it's a bad habit ]

MfG,
	Bernd
-- 
Bernd Petrovitsch                  Email : bernd@petrovitsch.priv.at
                     LUGA : http://www.luga.at

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Thread

script relative shebang Boris Rybalkin <ribalkin@gmail.com> - 2016-05-31 23:50 +0200
  Re: script relative shebang Nicolai Stange <nicstange@gmail.com> - 2016-06-01 01:10 +0200
    Re: script relative shebang Boris <ribalkin@gmail.com> - 2016-06-01 10:10 +0200
      Re: script relative shebang Bernd Petrovitsch <bernd@petrovitsch.priv.at> - 2016-06-01 15:20 +0200
      Re: script relative shebang "Austin S. Hemmelgarn" <ahferroin7@gmail.com> - 2016-06-01 17:40 +0200
        Re: script relative shebang Boris Rybalkin <ribalkin@gmail.com> - 2016-06-02 02:10 +0200
          Re: script relative shebang Ken Moffat <zarniwhoop@ntlworld.com> - 2016-06-02 06:30 +0200
            Re: script relative shebang Boris <ribalkin@gmail.com> - 2016-06-03 00:50 +0200

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