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Re: Test if parameter is set

X-seq: zsh-users 15967
From: Peter Stephenson <Peter.Stephenson@xxxxxxx>
To: <zsh-users@xxxxxxx>
Subject: Re: Test if parameter is set
Date: Tue, 19 Apr 2011 18:32:03 +0100
In-reply-to: <20110419182641.6dcaba6a@pwslap01u.europe.root.pri>
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On Tue, 19 Apr 2011 18:26:41 +0100
Peter Stephenson <Peter.Stephenson@xxxxxxx> wrote:
> However, you can do this in a more standard way, should you wish,
> with
> 
> if [[ -n ${VAR+1} ]]; then
>    ...

(Not yet *that* standard, in fact, but Frank has covered that.)

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

Member of the CSR plc group of companies. CSR plc registered in England and Wales, registered number 4187346, registered office Churchill House, Cambridge Business Park, Cowley Road, Cambridge, CB4 0WZ, United Kingdom

References:
- Test if parameter is set
  - From: Thorsten Kampe
- Re: Test if parameter is set
  - From: Peter Stephenson

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