How to Determine the CENTOS/RedHat version and Build/Release you're using
Product Line: VERDE
A quick and easy way to determine what Version of Centos your using is... Access the command line via the Terminal and type cat /etc/centos-release as follows:
[root@localhost ~]# cat /etc/centos-release
CentOS release 6.9 (Final)
The same command works for RedHat:
cat /etc/redhat-release
To determine the Build/Release, simply type cat /proc/version as follows:
cat /proc/version
Linux version 2.6.32-642.el6.x86_64 (mockbuild@worker1.bsys.centos.org) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-17) (GCC) ) #1 SMP Tue May 10 17:27:01 UTC 2016