[~]$ cat /etc/redhat-release
Red Hat Enterprise Linux Client release 5.8 (Tikanga)
[~]$ cat /proc/version
Linux version 2.6.18-308.el5 (mockbuild@x86-007.build.bos.redhat.com) (gcc
version 4.1.2 20080704 (Red Hat 4.1.2-50)) #1 SMP Fri Jan 27 17:17:51 EST 2012