#! /bin/bash

prog=`basename $0`

if [ $# -ne 4 ]
then
	echo "usage:   $prog base_url format min max"
	echo "exemple: $prog http://url.net/images/ \"pix%02d.jpg\" 1 60"
	exit 
fi

url=$1
fmt=$2
min=$3
max=$4

i=$min

while [ $i -le $max ]
do
	image=`printf $fmt $i`
	echo $image
	wget $url/$image
	i=`echo "$i+1"|bc`
done