avovsya/how-to-find-the-pid-of-a-process-using-a-given-port.md

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Created January 4, 2017 12:16

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How to find the PID of a process using a given port? — First published in fullweb.io issue #80

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how-to-find-the-pid-of-a-process-using-a-given-port.md

How to find the PID of a process using a given port?

Sometimes you have a process you lost the PID, and would like to kill it.

You can use top (or better htop) to search for your process name and press k to kill it. But this isn’t optimal when you aren’t sure of its name. A better alternative is to search by the port opened, for example port 80:

sudo lsof -i :80

Remember to use sudo. The process PID will be in the second column. Happy process killin’ 👾