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From: Joke de Buhr <joke@seiken.de>
To: zsh-users@zsh.org
Subject: Re: zsh portable script
Date: Mon, 12 Jul 2010 17:37:19 +0200
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References: <1007130241570.5546@smasher>
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On Monday 12 July 2010 16:46:22 Atom Smasher wrote:
> on freebsd, zsh installs as /usr/local/bin/zsh. on linux (and most other
> systems?) it installs as /usr/bin/zsh.
>=20
> what's the best way to make zsh script portable between linux and freebsd?
>=20
> i could start the script with:
>  	#!/usr/bin/env zsh
>=20
> or i could specify that the script be executed as:
>  	zsh script
>=20
> is there a better way?

Using env doesn't solve the problem either. There is no guarantee the "env"=
=20
program is installed under /usr/bin/env. It may as well be installed under=
=20
/usr/local/bin/env.

But every unix should have a bourne shell compatible shell located at /bin/=
sh.=20
You can use a bourne shell compatible code snippet and call zsh from it. If=
=20
PATH contains zsh than this will do the trick.


  #!/bin/sh
 =20
  if [ -z "$ZSH_VERSION" ]; then
      ## searching PATH for zsh executable
      exec zsh $* < $0

      ## no zsh detected
      exit 1=20
  fi
 =20
  ## zsh should be running now. do zsh stuff
  print "hello"

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