X-Recipient: archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status: No, hits=-2.4 required=5.0 	tests=AWL,BAYES_00
X-Spam-Check-By: sourceware.org
Message-ID: <4B4FAB5D.4000106@bopp.net>
Date: Thu, 14 Jan 2010 17:40:13 -0600
From: Jeremy Bopp <jeremy AT bopp DOT net>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.5) Gecko/20091204 Thunderbird/3.0
MIME-Version: 1.0
To: cygwin AT cygwin DOT com
Subject: Re: Can't set variables in a while loop that is passed to the rest   of the script.
References: <EDF49EC9787F914CA157FF6927D65A88302633AB82 AT CBMCC-X7-MBX10 DOT ad DOT cibc DOT com>
In-Reply-To: <EDF49EC9787F914CA157FF6927D65A88302633AB82@CBMCC-X7-MBX10.ad.cibc.com>
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
X-IsSubscribed: yes
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com

On 1/14/2010 5:23 PM, Damo, David wrote:
> Hi,
> 
> I have fixed the problem. It seems in cygwin it spawns a subshell even under bash. I used a for loop instead and everything worked nicely.
> 
> for line in `sed 's/\$/^/g' $propfile`
> do
> 	nvpair=$(echo $line | awk -F"=" '{print $1,$2}')
> 	set -- $nvpair
> 	if [ ! "$1" = ""  ]; then
> 		eval "$1"=\"$2\"
> 	fi
> done

Interesting.  Your workaround should work fine as long as the propfile
is not too large, I think.  However, wouldn't it be easier to source a
properly massaged version of propfile instead?

sed 's/\$/^/g' $propfile | grep -v '^=' >$propfile.tmp
. $propfile.tmp
rm $propfile.tmp

-Jeremy

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple