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Re: Safe scripting

X-seq: zsh-users 13733
From: Peter Stephenson <pws@xxxxxxx>
To: zsh-users@xxxxxxxxxx
Subject: Re: Safe scripting
Date: Wed, 21 Jan 2009 12:11:55 +0000
In-reply-to: <2d460de70901210403o246f030ai6f11ba469fc4cca2@xxxxxxxxxxxxxx>
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References: <gl6qnd$63s$1@xxxxxxxxxxxxx> <2d460de70901210403o246f030ai6f11ba469fc4cca2@xxxxxxxxxxxxxx>

Richard Hartmann wrote:
> On Wed, Jan 21, 2009 at 10:43, Thorsten Kampe <thorsten@xxxxxxxxxxxxxxxx> wro
> te:
> 
> Atom's solution is rather magic, but works very well. If you want to be
> portable, you can also do
> 
> cd foo       || exit 10
> rm bar       || exit 11
> cd foobar    || exit 12
> rm foobarbar || exit 13

"setopt errexit" should also be portable if done as "set -e".

If you just want to return from a function rather than exit a script,
"setopt errreturn", which is specific to zsh.

-- 
Peter Stephenson <pws@xxxxxxx>                  Software Engineer
CSR PLC, Churchill House, Cambridge Business Park, Cowley Road
Cambridge, CB4 0WZ, UK                          Tel: +44 (0)1223 692070

References:
- Safe scripting
  - From: Thorsten Kampe
- Re: Safe scripting
  - From: Richard Hartmann

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