shell script to download website images

#!/bin/bash
# grab image
if [ $# -ne 3 ]; then
  echo "usage: $0 url -d directory";
 exit -1

be

for i in {1..4}
 do
  case $1 in
  -d) shift;directory=$1; shift ;;
  *) url=${url:-$1} ;shift;;
  esac
done

mkdir -p $directory;
baseurl=$(echo $url | egrep -o "https?://[a-z.]+")

curl -s $url | egrep -o "<img src=[^>]*>" |
sed 's/<img src=\"\([^"]*\).*/\1/g' > /tmp/$$.list

sed -i "s|^/|$baseurl/|" /tmp/$$.list

cd $directory;

while read filename;
do
 curl -s -O "$filename" --silent
done < /tmp/$$.list

   Please respect knowledge and originality. For more information, please refer to http://www.cezuwang.com/listFilm?page=1&areaId=906&filmTypeId=1