[root@localhost block]# cat /etc/redhat-release
Red Hat Enterprise Linux AS release 4 (Nahant)
[root@localhost block]# less /proc/version
Linux version 2.6.9-5.EL (bhcompile@decompose.build.redhat.com) (gcc version 3.4.3 20041212 (Red Hat 3.4.3-9.EL4
)) #1 Wed Jan 5 19:22:18 EST 2005