How to check centos version

How to check centos version

1, lsb_release -a

# lsb_release -a
LSB Version:    :core-3.1-ia32:core-3.1-noarch:graphics-3.1-ia32:graphics-3.1-noarch
Distributor ID: CentOS
Description:    CentOS release 5.4 (Final)
Release:        5.4
Codename:       Final

2 , uname

This command applies to all Linux, including Redhat, SuSE, Debian, Centos and other distributions.

root@MyMail ~ # uname
Linux
root@MyMail ~ # uname -r
2.6.18-164.el5
[root@localhost ~]# uname -a
Linux localhost.localdomain 2.6.18-194.el5 #1 SMP Fri Apr 2 14:58:35 EDT 2010 i686 i686 i386 GNU/Linux

3. The following two methods are applicable to RedHat and CentOS

root@MyMail ~ # cat /etc/redhat-release
CentOS release 5.4 (Final)

Log in to linux and execute rpm -q redhat-release

#rpm -q redhat-release
或
root@MyMail ~ # rpm -q centos-releasecentos-release-5-4.el5.centos.1

Commands for the current centos version and the version corresponding to redhat

# cat /proc/version
Linux version 2.6.9-78.ELsmp (mockbuild@builder16.centos.org) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-10)) #1 SMP Fri Jul 25 00:04:28 EDT 2008

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