! What Version Are You Running
Most people know this command:
{{{
 uname -a
Linux francis 2.6.16.21-0.8-smp #1 SMP Mon Jul 3 18:25:39 UTC 2006 i686 athlon i386 GNU/Linux
}}}

On SUSE try this for more details:
{{{
cat /etc/SuSE-release

SUSE Linux Enterprise Server 10 (i586)
VERSION = 10
}}}

And someone said:
{{{
# cat /etc/issue

Welcome to SUSE Linux Enterprise Server 10 (i586) - Kernel \r (\l).

}}}