How to view linux version

1. View the kernel version command:

1) [root@q1test01 ~]# 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) [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. View the linux version:

1) Log in to the server and execute lsb_release -a to list all version information, for example:

[[email protected] ~]# [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 Note: This command applies to all Linux , including Redhat, SuSE, Debian and other distributions.

2) Log in to linux and execute cat /etc/issue, for example:

[root@q1test01 ~]# cat /etc/issue Red Hat Enterprise Linux AS release 4 (Nahant Update 2 Kernel \ on an \\m

3) Log in to linux and execute cat /etc/redhat-release , for example:

[root@q1test01 ~]# cat /etc/redhat- Release Red Hat Enterprise Linux AS release 4 (Nahant Update 2) Note: In this mode, you can directly see the specific version number, such as AS4 Update 1

4) Log in to linux to execute rpm -q redhat-release For example:

[root@q1test01 ~]# rpm -q redhat-release redhat-release-4AS-3 Note: In this way, you can see a so-called release number, for example, the above example is 3 There is a certain correspondence between this release number and the actual version, as follows: 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 -> R Edhat 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 Another: 3), 4) This method is only valid for Redhat Linux.