What’s the likelihood of you not knowing which version of Linux distro you are running? It’s probably a lot higher than you expect. I’ve had to do this at least twice before. If you’re not sure or you simply want to validate your distro, you can run the following commands to get the distro info.
In Ubuntu, running the command above returns the following info.
DISTRIB_ID=Ubuntu DISTRIB_RELEASE=10.04 DISTRIB_CODENAME=lucid DISTRIB_DESCRIPTION="Ubuntu 10.04.3 LTS"