Linux OS: CentOS Version
The latest CentOS version is CentOS7 (version 7.7.1511)
However, here are the others CentOS version under support: CentOS 6 (version 6.6.8) End Of Life (EOL) CentOS; CentOS 5 — version 5.5.11 –> 31st March 2017; CentOS 4 — version 4.4.9 –> 29th February 2012
For more information, kindly visit our Linux VPS page or contact our support team.
8 Ways to Check CentOS Version
Before starting to learn about how to check CentOS version, you should know that CentOS version consists of three parts, which are:
- Major Version: Major release version number
- Minor Version: Minor release version number
- Monthstamp: codebase month and year timestamp
1. /etc/centos-release file
There are CentOS release and version details in the CentOS specific file.
[[email protected] ~]# cat /etc/centos-releaseCentOS Linux release 8.1.1911 (Core) [[email protected] ~]# |
- Major Version: 8
- Minor Version: 1
- Monthstamp: 1911 i.e. November 2019.
Centos Release Version
2. /etc/system-release file
This file also contains the same information as the centos-release file.
[[email protected] ~]# cat /etc/system-releaseCentOS Linux release 8.1.1911 (Core) [[email protected] ~]# |
3. /etc/os-release file
This file contains the Linux OS information. So, you can get the major version number from this file.
[[email protected] ~]# cat /etc/os-releaseNAME="CentOS Linux"VERSION="8 (Core)"ID="centos"ID_LIKE="rhel fedora"VERSION_ID="8"PLATFORM_ID="platform:el8"PRETTY_NAME="CentOS Linux 8 (Core)"ANSI_COLOR="0;31"CPE_NAME="cpe:/o:centos:centos:8"HOME_URL="https://www.centos.org/"BUG_REPORT_URL="https://bugs.centos.org/"CENTOS_MANTISBT_PROJECT="CentOS-8"CENTOS_MANTISBT_PROJECT_VERSION="8"REDHAT_SUPPORT_PRODUCT="centos"REDHAT_SUPPORT_PRODUCT_VERSION="8"[[email protected] ~]# |
4. /etc/redhat-release file
CentOS is built on top of RedHat Linux distribution. Besides, this file also contains the same information as the centos-release file.
[[email protected] ~]# cat /etc/redhat-releaseCentOS Linux release 8.1.1911 (Core) [[email protected] ~]# |
5. lsb_release command
This command doesn’t come pre-installed with the CentOS server. However, you can install it using the following command.
[[email protected] ~]# yum install redhat-lsb |
Then, check the CentOS version using the following command.
[[email protected] ~]# lsb_release -dDescription: CentOS Linux release 8.1.1911 (Core) [[email protected] ~]# |
6. rpm query
Besides using the command above, we can query the rpm package manager to get the CentOS version information.
[[email protected] ~]# rpm -q centos-releasecentos-release-8.1-1.1911.0.8.el8.x86_64[[email protected] ~]# |
7. rpm macro
Here is a simple rpm macro evaluation to get the CentOS major version.
8. hostnamectl command
Next, the hostnamectl command can be used to get the system information. Also, it reveals the Operating System version.
[[email protected] ~]# hostnamectl Static hostname: localhost.localdomainTransient hostname: li1176-240.members.linode.com Icon name: computer-vm Chassis: vm Machine ID: c2a4bfa7e0c74457b3a978656ab959e8 Boot ID: c89bae2d3ec7493987a455bfa15e4818 Virtualization: kvm Operating System: CentOS Linux 7 (Core) CPE OS Name: cpe:/o:centos:centos:7 Kernel: Linux 3.10.0-1062.12.1.el7.x86_64 Architecture: x86-64[[email protected] ~]# [[email protected] ~]# [[email protected] ~]# hostnamectl | grep "Operating System" Operating System: CentOS Linux 7 (Core)[[email protected] ~]# |
Are you wondering why this command is printing CentOS 7, whereas others are printing CentOS 8?
Well, it’s because the hostnamectl command doesn’t work in Docker containers. This command output is from my own VPS machine. The other commands output is from my local Docker CentOS 8 container.
