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pkill

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The other week I learnt a valuable lesson about pkill, namely that it will match like a greedy little bastard unless instructed not to, which may have unintended consequences…

To illustrate, consider these two images:

Vanilla pkill targeting "foo"

So what happens is I start two processes, foo and foobar (which are simple shell scripts running sleep 1h),
execute pkill foo, and both foo and foobar dies.

pkill -x targeting "foo"

Adding -x (or --exact) to the pkill command will ensure that only foo gets killed.

If you want to go overnuking everything, regular pkill will serve you well, but if you are looking for a scalpel, then -x is most definitively what you want.

:wq


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