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I start a background process from my shell script, and I would like to kill this process when my script finishes.
How to get the PID of this process from my shell script? As far as I can see variable $! contains the PID of the current script, not the background process.
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From help jobs : -l Report the process group ID and working directory of the jobs. jobs -p is another option which shows just the PIDs. To use this in a shell script, you'd have to process the output.
You can use the ps command to find out which processes are running and display information about those processes.
You can list running processes using the ps command (ps means process status). The ps command displays your currently running processes in real-time.
You need to save the PID of the background process at the time you start it:
foo & FOO_PID=$! # do other stuff kill $FOO_PID You cannot use job control, since that is an interactive feature and tied to a controlling terminal. A script will not necessarily have a terminal attached at all so job control will not necessarily be available.
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