1. 查看內核版本命令:linux
1) [root@q1test01 ~]# cat /proc/version
Linux version 2.6.9-22.ELsmp (bhcompile@crowe.devel.redhat.com) (gcc version 3.4.4 20050721服務器
3.4.4-2)) #1 SMP Mon Sep 19 18:00:54 EDT 2005ide
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/Linuxip
3) [root@q1test01 ~]# uname -r
2.6.9-22.ELsmpget
2. 查看linux版本:it
1) 登陸到服務器執行 lsb_release -a ,便可列出全部版本信息,例如:io
[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-class
ia32:graphics-3.0-noarch
Distributor ID: RedHatEnterpriseAS
Description: Red Hat Enterprise Linux AS release 4 (Nahant Update 2)
Release: 4
Codename: NahantUpdate2
注:這個命令適用於全部的linux,包括Redhat、SuSE、Debian等發行版。test
2) 登陸到linux執行cat /etc/issue,例如以下:登錄
[root@q1test01 ~]# cat /etc/issue
Red Hat Enterprise Linux AS release 4 (Nahant Update 2)
Kernel \r on an \m
3) 登陸到linux執行cat /etc/redhat-release ,例如以下:
[root@q1test01 ~]# cat /etc/redhat-release
Red Hat Enterprise Linux AS release 4 (Nahant Update 2)
注:這種方式下能夠直接看到具體的版本號,好比 AS4 Update 1
4) 登陸到linux執行rpm -q redhat-release ,例如以下:
[root@q1test01 ~]# rpm -q redhat-release
redhat-release-4AS-3
注:這種方式下可看到一個所謂的release號,好比上邊的例子是3
這個release號和實際的版本之間存在必定的對應關係,以下:
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)兩種方法只對Redhat Linux有效.
查看系統是64位仍是32位:
一、getconf LONG_BIT or getconf WORD_BIT
二、file /bin/ls
三、lsb_release -a