Determine version of Red Hat

Answer

You can use the following commands to determine the Red Hat version number, as shown below:

[nz@NZ80000-H1 ~]$ lsb_release -i -r
Distributor ID: RedHatEnterpriseServer
Release: 5.3
[nz@NZ80000-H1 ~]$



[root@NZ80673-H1 ~]# cat /etc/issue
Red Hat Enterprise Linux Server release 5.3 (Tikanga)
Kernel \r on an \m



[root@NZ80673-H1 ~]# rpm -qi redhat-release
Name : redhat-release Relocations: (not relocatable)
Version : 5Server Vendor: Red Hat, Inc.
Release : 5.3.0.3 Build Date: Mon 15 Dec 2008 05:35:32 PM EST
Install Date: Fri 07 Jan 2011 06:33:53 PM EST Build Host: hs20-bc1-2.build.redhat.com
Group : System Environment/Base Source RPM: redhat-release-5Server-5.3.0.3.src.rpm
Size : 147548 License: GPL
Signature : DSA/SHA1, Wed 17 Dec 2008 05:20:29 PM EST, Key ID 5326810137017186
Packager : Red Hat, Inc.
Summary : Red Hat Enterprise Linux release file
Description :
Red Hat Enterprise Linux release files



[root@NZ80673-H1 ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.3 (Tikanga)