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Date: Wed, 14 May 2014 16:01:19 +0200
From: Florian Lindner <mailinglists@xgm.de>
To: zsh-users@zsh.org
Subject: Stop script if one command returns =?UTF-8?Q?!=3D=20=30?=
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Hello,

I have a script that I source with a number of commands and exports. Is 
there a way to tell zsh (or even in a portable way to sh) to stop 
execution of this script if any of the commands returns a return code 
other than zero?

Thanks,

Florian