I colleague recommended that I install htop the other day. It's an alternative to top which offers colour (ooh), a tree sort view (aah), and the ability to kill off processes within htop itself (very cool).
To install it, simply run:
sudo aptitude install htopAnd to run it, simply type:
htopThis is what it looks like running (with the tree view selected):
And here are some of the help options:
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