== How to check what version of Ubuntu You are running.==
To check which version of Ubuntu you are running, click System -> About Ubuntu. The first line of the page that loads will tell you the version number, for example Ubuntu 10.04 LTS.
Check the list of Ubuntu versions to see how old your version is and whether an upgrade is available.
Checking your version with the command line
To check your Ubuntu version using the command line:
Open a Terminal (Applications -> Accessories -> Terminal).
Type lsb_release -a and press Enter.
- The Ubuntu version will be displayed on the screen.