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Hi I'm working on a script to manage some stuff on my server and I'm trying to figure out how I can close my script when I'm done with it. I open it using &, but how can I kill it with another script? I'm trying to do this programmatically but I'm very unfamiliar with Linux.

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Propik, please add a snippit from your script (or just a summary) so other users can help you detect what the problem could be. This way it's not really a question, just a guess – Ivo Flipse♦ Jun 30 '10 at 18:12
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2 Answers

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I'm not really sure what you're asking. A properly written script should end on its own when it is done executing.

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This should have been a comment – Ivo Flipse♦ Jun 25 '10 at 6:31
@Ivo - I disagree, the answer is "A properly written script should end on its own when it is done executing." – MDMarra Jun 25 '10 at 13:45
if so than this isn't a real question, because it's obviously flawed. Furthermore, this answer doesn't help propik solve his problem one bit, even though you're right – Ivo Flipse♦ Jun 26 '10 at 14:00
@Ivo - I agree, but without him editing his question to provide the script there is no way for me to tell him why his end-condition isn't being met. Any other solution is just a band-aid. – MDMarra Jun 30 '10 at 15:41
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up vote 2 down vote

If I understand correctly you have a script that you run in the background using & and you would like to kill it after a while. Also hopefully this script is supposed to be running for a while.

You can find the process id of you script by using a command such as:

ps  aux | grep test.sh| awk '{print $2}'

replace test.sh by the name of your script

to kill it run

kill `ps  aux | grep test.sh| awk '{print $2}'`

ps is the command to list the processes on the computer, aux says print every process on the system, grep search for a string from standard input (the output of ps in this case), awk is a program that allows you to process some text and run stuff on it. In this case I asked it to print the second column of the ouput of the first two commands.

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This would also kill other processes that had the grepped string such as vi test.sh. Unless you do grep -v grep or grep [t]est.sh, the PID of the grep command will be included. Take a look at pkill. It lets you restrict selected processes by username and other criteria and only looks at the command name and not its arguments (unless you tell it to). – Dennis Williamson Jun 25 '10 at 7:06
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