有以下命令可以查看：

rpm -q centos-release

# 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

这个命令适用于所有的linux，包括Redhat、SuSE、Debian、Centos等发行版。

root@localhost ~ # uname

Linux

root@localhost ~ # 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

以下二种方法适用于RedHat,CentOS

root@localhost ~ # cat /etc/redhat-release

CentOS release 5.4 (Final)

登录到linux执行rpm -q redhat-release

#rpm -q redhat-release

或CentOS

root@localhost ~ # rpm -q centos-release

centos-release-5-4.el5.centos.1

当前centos 版本与redhat对应的版本的命令

# 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