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X-Authentication-Warning: slinky.cs.nyu.edu: pechtcha owned process doing -bs
Date: Fri, 17 Oct 2003 14:24:45 -0400 (EDT)
From: Igor Pechtchanski <pechtcha AT cs DOT nyu DOT edu>
Reply-To: cygwin AT cygwin DOT com
To: cygwin AT cygwin DOT com
Subject: Re: ash does not understand '~'
In-Reply-To: <20031017102823.GP25076@cygbert.vinschen.de>
Message-ID: <Pine.GSO.4.56.0310171423290.20462@slinky.cs.nyu.edu>
References: <JGEMLHPCGMNLEIGOCPMGCEBCIGAA DOT Ralf DOT Habacker AT freenet DOT de>
 <20031017102823 DOT GP25076 AT cygbert DOT vinschen DOT de>
Importance: Normal
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII

On Fri, 17 Oct 2003, Corinna Vinschen wrote:

> On Fri, Oct 17, 2003 at 12:19:36PM +0200, Ralf Habacker wrote:
> > Hi,
> >
> > the following shell script does not work at least with ash-20031007-1
> > although I don't see any reason why this should not be a valid syntax. If
> > you use
>
> The reason is, '~' is an extension to the bourne shell syntax, first
> defined in csh or tcsh, AFAIK.  ash is a pure bourne shell with next
> to no extensions. Using '~' in a shell script is non-portable.
>
> Corinna

FWIW, the "export VAR=VALUE" syntax is also non-portable, and was
introduced in ksh.  In sh, "VAR=VALUE; export VAR" should be used.
	Igor
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