查看linux版本命令

1，查看内核版本命令：

cat   /proc/version

[bash-3.00]$ cat  /proc/version

Linux version 2.6.9-22.ELsmp ([e-mail])(gcc version 3.4.4 20050721 (Red Hat 3.4.4-2)) #1 SMP Mon Sep 1918:32:14 EDT 2005

uname   -a

uname   -r cat   /etc/issue

man   uname

 

2，查看linux版本：抄录如下：

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

adapter-suse10:/etc # cat /etc/SuSE-release

SUSE Linux Enterprise Server 10 (i586)

VERSION = 10

adapter-suse10:/etc # lsb_release -a

LSB Version:core-2.0-noarch:core-3.0-noarch:core-2.0-ia32:core-3.0-ia32:desktop-3.1-ia32:desktop-3.1-noarch:graphics-2.0-ia32:graphics-2.0-noarch:graphics-3.1-ia32:graphics-3.1-noarch

Distributor ID: SUSE LINUX

Description:   SUSE Linux Enterprise Server 10 (i586)

Release:       10

Codename:      n/a

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

2) 登录到unix执行cat /etc/*-release ，例如如下：

[bash-3.00]$ cat /etc/redhat-release

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

这种方式下可以直接看到具体的版本号，比如 AS4 Update 2

[adapter-suse10:/etc] # cat /etc/SuSE-release

SUSE Linux Enterprise Server 10 (i586)

VERSION = 10

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

bash-3.00$ rpm -q redhat-release

redhat-release-4ES-3

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 Update4

redhat-release-4AS-2 -> Redhat Enterprise Linux AS 4

redhat-release-4AS-2.4 -> Redhat Enterprise Linux AS 4 Update1

redhat-release-4AS-3 -> Redhat Enterprise Linux AS 4 Update2

redhat-release-4AS-4.1 -> Redhat Enterprise Linux AS 4 Update3

redhat-release-4AS-5.5 -> Redhat Enterprise Linux AS 4 Update4