rhinoinrepose
Reputation: 2151
Please explain: trap 'sudo kill -9 -- -$$' EXIT
What is this shell command doing?
trap 'sudo kill -9 -- -$$' EXIT
Upvotes: 9
Views: 826
Answers (1)
Zombo
Reputation: 1
$$is the process ID of the script itself-$$means use the process group ID--signals the end of options
So upon exit the trap will kill all subprocesses of the script.
Upvotes: 6
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