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rated 0 times [ 1] [ 0] / answers: 1 / hits: 2186 / 1 Year ago, sun, january 8, 2023, 10:40:04

Just as the title says, Google gives me nothing and I can't test it on this server.

The command as is follows:

tail -f <file> | fgrep --line-buffered "string" | sed -u 's/stuff//g' >> output.log

Do I need to use kill -SIGTERM <PID> or kill -SIGKILL <PID> to stop a tail -f?

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1 Year ago

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answered 1 Year ago atereress · Accepted Answer

SIGTERM sends a signal to the command and will tell the command to stop itself. If there is a need to clean-up files due to the kill the command can do that.

SIGKILL sends a signal to the init system. The command itself does not get even told it is going to get killed.

So you can use both; but SIGTERM should be preferred (it is more graceful).

Will “kill -SIGTERM” stop “tail -f”?

Yes, it will. On Linux tail acts on SIGTERM.