How do I check which version of RHEL is installed?

To check which version of Red Hat Enterprise Linux (RHEL) is currently installed:

  • Log into your server as root via Eterm or PuTTY
  • Run the following command:
cat /etc/redhat-release

You will see output similar to the following:

[root@firestorm ~]# cat /etc/redhat-release 
Red Hat Enterprise Linux Server release 5.6 (Tikanga)