#!/bin/sh
#
# rename *.oldsuffix files, changing oldsuffix to newsuffix
#
# usage:  rename-them oldsuffix newsuffix
if [ -z "$2" ]
then
	echo usage is `basename $0` oldsuffix newsuffix
	exit 1
fi

# first attempt -- fails for files with names containing spaces
#for file in `ls *.$1`
#do
	#newname=`echo $file | sed "s/\.$1/.$2/"`
	#echo mv -v $file $newname
#done

ls *.$1 | while read file
do
	newname=`echo $file | sed "s/\.$1/.$2/"`
	mv -v "$file" "$newname"
done