#!/bin/sh
# kyle christensen 02.02.02
# I am pretty bored.

if [ -x $2 ]
then
	echo "Usage: $0 prefix extension"
	echo "Ex: $0 foo .jpg" 
	exit
fi
for i in *$2
do
	let x=x+1
	if [ $x -lt 10 ];
	then
		file="$10$x$2"
	else
		file="$1$x$2"
	fi
mv $i $file
done