Prcesses & Signals

Warning

This page is a placeholder

Why this?

This is a core Linux topic.
It is always relevant and opens the door for advanced topics like scripting, scheduling and system recovery.
If you don't know how Linux handles processes and how you see and handle them, it is very hard to do anything.

What is a Process?

A process is a running instance of a program, identified by a PID.

Basic Commands:

ps aux list all running prcesses
top / htop live monitoring
kill <PID> kill process by PID
pmap <PID> showes memory usage

Common Signals

Signal	Explaination
SIGTERM	polite kill
SIGKILL	brute-force, can't be caught
SIGINT	interrupt
SIGSTOP	pause
SIGCONT	resume