Checking your Linux CentOS Operating System’s Version from a Command Line Interface
CentOS is one of the most popular Linux Distribution which is used as an open source operating system. It is one sample of Linux Distribution from many other which is derived from RedHat Linux family and it is maintained by Open Source Community.
Below is how we actually check the current version of a running CentOS Linux Distribution by executing the following command:
[username@hostname ]# cat /etc/redhat-release CentOS Linux release 7.2.1511 (Core) [username@hostname ]#