linux下如何檢視系統和核心版本

1. 檢視核心版本指令：

　　1) [[email protected] ~]# cat /proc/version

　 　 Linux version 2.6.9-22.ELsmp ([email protected]) (gcc version 3.4.4 20050721 (Red Hat 3.4.4-2)) #1 SMP Mon Sep 19 18:00:54 EDT 2005

　　2) [[email protected] ~]# 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) [[email protected] ~]# uname -r

　　2.6.9-22.ELsmp

2.檢視linux的版本主要有三種方法：

1) 登入到伺服器執行 lsb_release -a ，即可列出所有版本資訊，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] ~]#

這個指令适用于所有的linux，包括Redhat、SuSE、Debian等發行版。

2) 登入到linux執行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] ~]#

這種方式下可以直接看到具體的版本号，比如 AS4 Update 1

3）登入到linux執行rpm -q redhat-release ，例如如下

[[email protected] ~]# rpm -q redhat-release

redhat-release-4AS-2.4

[[email protected] ~]#

這種方式下可看到一個所謂的release号，比如上邊的例子是2.4

這個release号和實際的版本之間存在一定的對應關系，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）兩種方法隻對Redhat Linux有效