0x0C Processes in linux: top, ps, netstat, kill

Visualizing processes in Linux with pstree. Getting more information about them with the top and ps commands, killing them with the kill command.
How to kill a process if the desktop environment froze?

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// Music credits:
author:trackname { "DJ Disarray":"No longer the same" }
url:license { "https://soundcloud.com/dj-disarray/no-longer-the-same":"http://creativecommons.org/licenses/by/3.0/"}