which version?

I keep having to look up which version of the distribution I am running and like every thing Linux, every distribution has decided to use it's own way.

For Ubuntu:

# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=8.04
DISTRIB_CODENAME=hardy
DISTRIB_DESCRIPTION="Ubuntu 8.04.3 LTS"

For RedHat/Fedora:

#cat /etc/redhat-release

For SUSE:

$ cat /etc/SuSE-release
openSUSE 11.1 (i586)
VERSION = 11.1