oracle@PRIMARY$ cat /proc/version
Linux version 2.6.9-42.ELsmp (bhcompile@ls20-bc1-13.build.redhat.com) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-2)) #1 SMP Wed Jul 12 23:32:02 EDT 2006

oracle@PRIMARY$ cat /etc/issue
Red Hat Enterprise Linux AS release 4 (Nahant Update 4)
Kernel \r on an \m

oracle@PRIMARY$ cat /etc/redhat-release
Red Hat Enterprise Linux AS release 4 (Nahant Update 4)

oracle@PRIMARY$ uname -a
Linux PRIMARY 2.6.9-42.ELsmp #1 SMP Wed Jul 12 23:32:02 EDT 2006 x86_64 x86_64 x86_64 GNU/Linux