1. 查看内核版本命令:

[root@asic ~]# cat /proc/version

Linux version 2.6.9-89.ELsmp (mockbuild@hs20-bc1-2.build.redhat.com) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-11)) #1 SMP Mon Apr 20 10:34:33 EDT 2009

[root@asic ~]# uname -a

Linux asic 2.6.9-89.ELsmp #1 SMP Mon Apr 20 10:34:33 EDT 2009 i686 i686 i386 GNU/Linux

[root@asic ~]# uname -r

2.6.9-89.ELsmp

2.查看linux的版本主要有三种方法:

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@asic ~]# 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

[root@asic ~]#

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:

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

Red Hat Enterprise Linux AS release 4 (Nahant Update 1)

[root@asic ~]#

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

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

redhat-release-4AS-2.4

[root@asic ~]#

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

55e8472636989717679dcf788c123335.png

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

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