如何查看centos系统版本

如何查看centos系统版本

解决方法：
有以下命令可以查看：
# 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@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
以下二种方法适用于RedHat,CentOS
root@MyMail ~ # 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@MyMail ~ # rpm -q centos-release
centos-release-5-4.el5.centos.1

1) 登录到服务器执行 lsb_release -a ，即可列出所有版本信息，例如： [[email protected] ~]# lsb_release -a lsb version: 1.3 distributor id: redhatenterpriseas description: red hat enterprise linux as release 4 (nahant update 1) release: 4 codename: nahantupdate1 [[email protected] ~]# 这个命令适用于所有的linux，包括redhat、suse、debian等发行版。 2) 登录到linux执行cat /etc/redhat-release ，例如如下： [[email protected] ~]# cat /etc/redhat-release red hat enterprise linux as release 4 (nahant update 1) [[email protected] ~]# 这种方式下可以直接看到具体的版本号，比如 as4 update 1 3）登录到linux执行rpm -q redhat-release ，例如如下 [[email protected] ~]# rpm -q redhat-release redhat-release-4as-2.4 [[email protected] ~]# 这种方式下可看到一个所谓的release号，比如上边的例子是2.4 这个release号和实际的版本之间存在一定的对应关系，如下： redhat-release-3as-1 -> redhat enterprise linux as 3 redhat-release-3as-7.4 -> redhat enterprise linux as 3 update 4 redhat-release-4as-2 -> redhat enterprise linux as 4 redhat-release-4as-2.4 -> redhat enterprise linux as 4 update 1 redhat-release-4as-3 -> redhat enterprise linux as 4 update 2 redhat-release-4as-4.1 -> redhat enterprise linux as 4 update 3 redhat-release-4as-5.5 -> redhat enterprise linux as 4 update 4 注意：第（2）（3）两种方法只对redhat linux有效。