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Possible Duplicate:
See computer’s uptime and history

Well sometimes for testing purposes I want to know the up time but don't know where to look. How do I check for this?

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marked as duplicate by Marco Ceppi♦ Dec 14 '12 at 19:10

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1 Answer

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A simple way is to use the command uptime.

Example:

$ uptime 
 15:26:58 up  2:34,  3 users,  load average: 0.27, 0.28, 0.30

That means it's now 15:26 and my computer has been up for 2:34 hours.

If you prefer a desktop program, there are several that can show the up time, for example Conky or GKrellM.

Conky (screenshot from the Conky web site):

enter image description here

GKrellM:

enter image description here

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