Linux Cheat Sheet

This is going to be an ongoing beginner cheat sheet for useful commands in Linux. In the context of both AWS and on-prem. In personal, study, and work environments.

Mainly for my usage but feel free to use. Will be updated over time.

Commands

Find a process ID running on specific port:
fuser 3000/tcp

Kill a process running on specific port:
fuser -k 3000/tcp

Using a screen:
https://serverfault.com/a/19646
https://serverfault.com/a/19635

Reparent/Reattach an existing shell (ssh) connection when connection was lost or early exit:
https://serverfault.com/a/1095878