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How to Check CentOS Version

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How to Check CentOS Version
How to Check CentOS Version

Question: How to check CentOS version?

Sometimes you may need to check the version of CentOS installed on your machine. Here are some different ways by which you can find the version of CentOS the machine is running.

LSB Release:

lsb_release is a command that prints certain LSB (Linux Standard Base) and Distribution information

You need to install “redhat-lsb-core” package.
lsb_release -a

Output:

LSB Version: :core-4.1-amd64:core-4.1-noarch
Distributor ID: CentOS
Description: CentOS Linux release 7.3.1611 (Core) 
Release: 7.3.1611
Codename: Core

From the above output, 7.3.1611 confirms the machine is running with CentOS 7.3.

System Release:

You can also get the system version by querying the centos-release package.

rpm -qa | grep -i centos-release

Output:

centos-release-7-3.1611.el7.centos.x86_64

Release Files:

Finally, you can also get the CentOS version details by taking a look at /etc/system-release and /etc/redhat-release.

cat /etc/system-release

OR

cat /etc/redhat-release

Output:

CentOS Linux release 7.3.1611 (Core)

That’s All.

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