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Sun, Dec 10, 2017 7:39 pm

Determining the version of CentOS on a system

If you are logged into a CentOS Linux system, there are a few ways you can determine the version of CentOS running on the system from a command-line interface (CLI), i.e., a shell prompt.

In the /etc directory, there should be a /etc/centos-release file containing information on the version of CentOS.

$ ls -l /etc/*elease
-rw-r--r--  1 root root  27 Mar 28  2017 /etc/centos-release
-rw-r--r--. 1 root root 152 Nov 25  2013 /etc/lsb-release
lrwxrwxrwx  1 root root  14 Apr 20  2017 /etc/redhat-release -> centos-release
lrwxrwxrwx  1 root root  14 Apr 20  2017 /etc/system-release -> centos-release
$ cat /etc/*elease
CentOS release 6.9 (Final)
CentOS release 6.9 (Final)
CentOS release 6.9 (Final)

To just see the version number, you can use one of the grep commands below.

$ grep -oE '[0-9]+\.[0-9]+' /etc/redhat-release
$ grep -oE '[0-9]+\.[0-9]+' /etc/centos-release

[ More Info ]

[/os/unix/linux/centos] permanent link

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