How To Find Out RHEL 6 / CentOS 6 Kernel Version last updated January 3, 2019 in Categories CentOS, Linux, RedHat and FriendsHow do I find out my RHEL (Red Hat Enterprise Linux) 6 Linux kernel version number running on HP server? How can I get RHEL 6 kernel version? How do you find out a CentOS 6 kernel version using the CLI?