maemo.org - Talk - View Single Post - shell script question

	macey	2013-08-17 , 12:36
	Posts: 283 \| Thanked: 276 times \| Joined on Aug 2011 @ uk or @Pai,Mae Hong Son, Thailand	#1

Hello, I am no shell script expert but have been dabbling for some time.
I have a routine that I user for killing selected tasks:-

Code:

for i in `ps aux|grep  "vlc" |grep -v grep | awk '{print $1}' ` ; do
          kill -9 $i
          done

On my N900

Code:

ps aux|grep  "vlc" |grep -v grep

would typically return:-

Code:

19716 user     81648 S    /opt/VideoLAN/bin/vlc -I dummy --volume 120 http://name:password@localhost:9981/stream/channelid/60

Executing the kill code would kill task 19716 successfuly.

If I modify the code in any way to be more selective in killing my vlc task, sometihing like:-

Code:

for i in `ps aux|grep  "vlc -I dummy --volume 120 http://name:password@localhost:9981/stream/channelid" |grep -v grep | awk '{print $1}' ` ; do
          kill -9 $i
          done

Code:

ps aux|grep  "vlc -I dummy --volume 120 http://name:password@localhost:9981/stream/channelid" |grep -v grep

returns:-

Code:

19716 user     81648 S    /opt/VideoLAN/bin/vlc -I dummy --volume 120 http://name:password@localhost:9981/stream/channelid/60

But executing the modified "kill loop" code does not kill task 19716.

Anyone here able to tell me why?
I have changed the code in any number of ways to select just this type of vlc task, using grep "9981*, grep "stream"..... Only grep "vlc" seems to work.
I thought I knew how this code worked, very myserious!

:confused

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