Help me to create a bash script

Mr. Alex · 06-12-2011, 05:48 AM

Hi!
I need to create a bash script with "if" statements and to do that I need to learn some bash programming. I will probably do it later but I want to create some script today so maybe someone can help me with that...

The script should do this:

Code:

I enter something like this string with a script path:
$ ~/watch-script http://www.youtube.com/watch?v=OI3gKGhe0QM

script does:

cd /tmp
$URL = http://www.youtube.com/watch?v=OI3gKGhe0QM

if (clive "$URL" -f mp4_1080p doesn't output an error) than
 clive "$URL" -f mp4_1080p ; gnome-mplayer the newest file in /tmp

else if (clive "$URL" -f mp4_720p doesn't output an error) than
 clive "$URL" -f mp4_720p ; gnome-mplayer the newest file in /tmp

else if (clive "$URL" -f flv_480p doesn't output an error) than
 clive "$URL" -f flv_480p ; gnome-mplayer the newest file in /tmp

else
 echo 'error'

grail · 06-12-2011, 07:40 AM

Ok .. so you have the pseudo'ish code ... what is your actual question?

Also, your following statement would seem counter productive:

Quote:

I need to learn some bash programming. I will probably do it later

Does this imply you would like someone here to do this for you and when you get around to learning you will do more??

Mr. Alex · 06-12-2011, 09:22 AM

That's about right.

MTK358 · 06-12-2011, 09:27 AM

http://linuxcommand.org/wss0090.php

grail · 06-13-2011, 12:21 AM

Quote:

That's about right.

Sorry to disappoint you then. No one here will do it for you but all are happy to help you.

chrism01 · 06-14-2011, 12:51 AM

See also http://rute.2038bug.com/index.html.gz http://tldp.org/LDP/Bash-Beginners-G...tml/index.html http://www.tldp.org/LDP/abs/html/