Shell script download Web image

Share with you a shell script to write a picture grabber.
How to use:
Img_downloader.sh.
Enter under shell when using:
./img_downloader.sh www.baidu.com-d Images
The shell script will download the image on the homepage of Baidu.

Code:

#!/bin/Bashif[$#-ne3];then Echo"Usage: $ url-d DIRECTORY"Exit-1fi forIinch{1..4} Do  Case$1 inch-d) shift; directory=$1; shift;; *) url=${url:-$1};shift;esacdonemkdir-P $directorybaseurl=$ (echo $url | egrep-o"https?:/ /[a-z.] +") echo"$baseurl"Curl-S $url | Egrep-o"]*>"|sed's/'>/tmp/$$.listsed-I."s|^/| $baseurl/|"/tmp/$$.listcd $directory; whileRead filename DoCurl-s-o"$filename"--Silentdone</tmp/$$.list

Shell script download Web image