The simplest way to check CentOS version is reading release information on /etc/centos-release:
$ cat /etc/centos-release CentOS Linux release 7.5.1804 (Core)
The simplest way to check CentOS version is reading release information on /etc/centos-release:
$ cat /etc/centos-release CentOS Linux release 7.5.1804 (Core)