From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from server1.shellworld.net ([64.39.15.178] ident=root)
	by speech.braille.uwo.ca with esmtp (Exim 3.36 #1 (Debian))
	id 1AJRWY-00032u-00
	for <Speakup@braille.uwo.ca>; Tue, 11 Nov 2003 00:57:10 -0500
Received: from server1.shellworld.net (ldavis@localhost.shellworld.net
	[127.0.0.1])
	by server1.shellworld.net (8.12.8/8.11.1) with ESMTP id hAB5v6wO051527
	for <Speakup@braille.uwo.ca>; Mon, 10 Nov 2003 23:57:06 -0600 (CST)
	(envelope-from ldavis@shellworld.net)
Received: from localhost (ldavis@localhost)
	by server1.shellworld.net (8.12.8/8.12.8/Submit) with ESMTP id
	hAB5v6Yi051523
	for <Speakup@braille.uwo.ca>; Mon, 10 Nov 2003 23:57:06 -0600 (CST)
	(envelope-from ldavis@shellworld.net)
X-Authentication-Warning: server1.shellworld.net: ldavis owned process doing
	-bs
Date: Mon, 10 Nov 2003 23:57:05 -0600 (CST)
From: Luke Davis <ldavis@shellworld.net>
To: Speakup@braille.uwo.ca
Message-ID: <Pine.BSF.4.58.0311102350400.50998@server1.shellworld.net>
Organization: "Tacticus Communications, Inc."
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Cc: 
Subject: Re: Mixed Case Directory Names
X-BeenThere: speakup@braille.uwo.ca
X-Mailman-Version: 2.1.3
Precedence: list
Reply-To: "Speakup is a screen review system for Linux."
	<speakup@braille.uwo.ca>
List-Id: Speakup is a screen review system for Linux.
	<speakup.braille.uwo.ca>
List-Unsubscribe: <http://speech.braille.uwo.ca/mailman/listinfo/speakup>,
	<mailto:speakup-request@braille.uwo.ca?subject=unsubscribe>
List-Archive: <http://braille.uwo.ca/pipermail/speakup>
List-Post: <mailto:speakup@braille.uwo.ca>
List-Help: <mailto:speakup-request@braille.uwo.ca?subject=help>
List-Subscribe: <http://speech.braille.uwo.ca/mailman/listinfo/speakup>,
	<mailto:speakup-request@braille.uwo.ca?subject=subscribe>
X-List-Received-Date: Tue, 11 Nov 2003 05:57:11 -0000

This is untested, but Try this:

#!/bin/sh
if [ -z $1 ]; then
echo "You didn't specify a directory!";
exit 1;
elif [ -d $1 ]; then
tf=/tmp/renamer.$$;
rm -f $tf;
ls *[A-Z]* | awk '{print "mv", $1, tolower($1)}' > $tf;
source $tf;
exit 0;
else echo "$1 is not a directory!";
exit 2;
fi