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- When should I not kill -9 a process? 9 answers
If I want to kill a process as careful and politely as possible,
which signals should I use in a kill command, in which order?
I would like to give the programm any kind of time to clean up, if it likes to, so just sending a
SIGTERM will be to harsh, I think?
-9") last, that's clear.
But which to start?
SIGHUP? Which signals are just a waste of time?
The relevant signals for reference, from
man 7 signal
Signal Value Action Comment ────────────────────────────────────────────────────────────────────── SIGHUP 1 Term Hangup detected on controlling terminal or death of controlling process SIGINT 2 Term Interrupt from keyboard SIGQUIT 3 Core Quit from keyboard SIGKILL 9 Term Kill signal SIGPIPE 13 Term Broken pipe: write to pipe with no readers SIGTERM 15 Term Termination signal