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Run a process but on a certain pid

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# 1  
Old 12-30-2009
Run a process but on a certain pid
Hi all,

I am having a little bit of trouble trying to find something out. I am trying to script a start/stop php file, for some gaming servers i host. The server have 2 lots of processes running on them, and the customers need to be able to start and stop them at their will.

So i know how to run a .sh file using php:

system('sh run.sh');

But because i can only kill by pid (kill -9 pid), i need to know if its possible to run the sh files on a certain pid, and if not how to find the correct pid on the process which has been run.

Thanks in advance.
# 2  
Old 12-30-2009
You won't have anything to kill, as system() only returns when the command is finished. If you want to send a signal to a command started by the script, you'll have to do so from within the script, and pass the PID back to PHP (or whatever other program) through a file.

Side note: sending SIGKILL should be the last resort. Try sending SIGTERM (15) first.
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