Possible Duplicate:
How do I free up disk space?

I am running Ubuntu 11.10 in my VPS and it's occupying quite a lot of my disk space, how do I remove the packages that are not being currently needed/used by any program ?

marked as duplicate by belacqua, ajmitch, John S Gruber, RobotHumans, ish Aug 22 '12 at 7:29

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