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Possible Duplicate:
How can I find the version of Ubuntu that is installed?

There should be some easy command to find from console what version of ubuntu I'm using.

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marked as duplicate by fossfreedom, Bruno Pereira, James, Jorge Castro, enzotib Nov 26 '11 at 16:56

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

    
Possible duplicate: askubuntu.com/q/12493/18612 – Christopher Kyle Horton Nov 26 '11 at 6:38

Here it is: cat /etc/lsb-release. On my system, it gives this output:

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=11.10
DISTRIB_CODENAME=oneiric
DISTRIB_DESCRIPTION="Ubuntu 11.10"

Somewhat related, uname -a also gives useful information about the install, like the kernel version.

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karthick@Ubuntu1104:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu natty (development branch)
Release:    11.04
Codename:   natty
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