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Date:	Wed, 14 May 2008 20:36:02 -0400
From:	David Arnstein <arnstein AT panix DOT com>
To:	cygwin AT cygwin DOT com
Subject:	grep raises signal ERR
Message-ID:	<20080515003601.GA18386@panix.com>
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Is this a bug? The following three-line shell script prints out the 
string
	<aborting> 
when executed.

#!/bin/bash
trap "echo '<aborting>' ; exit 1" ERR
grep -q -e 'foo' < /dev/null

This indicates that grep has raised the signal ERR. It is inconvenient
for me. I am attempting to clean up some scratch files whenever a
shell script aborts. I use the trap command to do this. However, the
above command 
	grep -q -e 'foo' < /dev/null
is NOT aborting my shell script. It simply returns status 1, which I
do NOT want to handle by calling exit.

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