LinuxQuestions.org - Random image script?

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- - Random image script? (https://www.linuxquestions.org/questions/linux-desktop-74/random-image-script-676345/)

Random image script?

Hello,I am trying to make a script that downloads a random image from the internet and sets it as my background.I am not very good at this so any help is much appreciated :).So far i have something like this

Code:

#!/bin/sh

curl http://www.randomimage.us/index.php -o tmp.txt

cat tmp.txt | grep .jpg | xargs curl -o tmp.jpg

fbsetbg tmp.jpg

There is probably a easier way to do this but I dont know lol.
The problem I have here is with grep,I need it to only grep the url and not everything on that line.How can I do this?
Any help much appreciated
Thanks

Thanks to repz on the #linux channel on freenode I have got this to work.

Code:

#!/bin/sh

curl http://www.randomimage.us/index.php -o tmp.txt

curl -o tmp.jpg `egrep -o "http:[^']+\.jpg" tmp.txt`

fbsetbg tmp.jpg

thanks repz :)