查看linux版本命令

1. 查看内核版本命令： 

 1) [root@q1test01 ~]# cat /proc/version 

 Linux version 2.6.9-22.ELsmp (bhcompile@crowe.devel.redhat.com) (gcc version 3.4.4 20050721 (Red Hat 3.4.4-2)) #1 SMP Mon Sep 19 18:00:54 EDT 2005 

 2) [root@q1test01 ~]# uname -a 

 Linux q1test01 2.6.9-22.ELsmp #1 SMP Mon Sep 19 18:00:54 EDT 2005 x86_64 x86_64 x86_64 GNU/Linux 

 3) [root@q1test01 ~]# uname -r 

 2.6.9-22.ELsmp 

 2. 查看linux版本： 

 1) 登录到服务器执行 lsb_release -a ,即可列出所有版本信息,例如: 

 [root@3.5.5Biz-46 ~]# [root@q1test01 ~]# lsb_release -a 

 LSB Version: :core-3.0-amd64:core-3.0-ia32:core-3.0-noarch:graphics-3.0-amd64:graphics-3.0- 

 ia32:graphics-3.0-noarch 

 Distributor ID: RedHatEnterpriseAS 

 Description: Red Hat Enterprise Linux AS release 4 (Nahant Update 2) 

 Release: 4 

 Codename: NahantUpdate2 

 注: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/issue,例如如下: 

 [root@q1test01 ~]# cat /etc/issue 

 Red Hat Enterprise Linux AS release 4 (Nahant Update 2) 

 Kernel \r on an \m 

 3) 登录到linux执行cat /etc/redhat-release ,例如如下: 

 [root@q1test01 ~]# cat /etc/redhat-release 

 Red Hat Enterprise Linux AS release 4 (Nahant Update 2) 

 注:这种方式下可以直接看到具体的版本号，比如 AS4 Update 1 

 4)登录到linux执行rpm -q redhat-release ,例如如下: 

 [root@q1test01 ~]# rpm -q redhat-release 

 redhat-release-4AS-3 

 注:这种方式下可看到一个所谓的release号，比如上边的例子是3 

 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 

 另:第3)、4)两种方法只对Redhat Linux有效