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Date: Mon, 18 Apr 2005 10:59:10 -0400 (EDT)
From: Igor Pechtchanski <pechtcha AT cs DOT nyu DOT edu>
Reply-To: cygwin AT cygwin DOT com
To: Arash Partow <arashp AT hotmail DOT com>
cc: cygwin AT cygwin DOT com
Subject: Re: Possible bash incompatibility
In-Reply-To: <BAY20-F859F5D44AF9EA3A9E691DD6290@phx.gbl>
Message-ID: <Pine.GSO.4.61.0504181047370.19797@slinky.cs.nyu.edu>
References: <BAY20-F859F5D44AF9EA3A9E691DD6290 AT phx DOT gbl>
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Content-Type: TEXT/PLAIN; charset=US-ASCII

On Mon, 18 Apr 2005, Arash Partow wrote:

> Hi all,
>
> Could someone tell me why the piece of bash script below is being
> rejected as being erroneous on cygwin but works fine on other bash's
> ie: linux and openbsd?

I would imagine because the output of "uname -s" doesn't contain "CYGWIN"
on either Linux or OpenBSD, so "grep -c" outputs a 0.  But even on Cygwin
this works (as Brian already confirmed).

> my current version of bash is update (2.05b).
>
> #!/bin/bash
>
> if [ `uname -s | grep -c 'CYGWIN'` -eq "1" ]; then

FWIW, a better test would be

if uname -s | grep -q 'CYGWIN'; then ...

> printf "Target platform is Win32 via CYGWIN\n";
> else
> printf "Target platform is NOT Win32 via CYGWIN\n";
> fi
>
> error message:
> bash-2.05b$ ./test.sh
> ./test.sh: line 3: [: too many arguments
> Target platform is NOT Win32 via CYGWIN
> bash-2.05b$

You could try "set -x" to see the actual command that is executed...  It
could be due to some stderr output from either uname or grep.
In any case, other than the output of "uname" containing CYGWIN (i.e.,
changes in data), none of the above is Cygwin-specific.
	Igor
-- 
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