How to view the Linux version

1. View Kernel Version command:

1) [root@q1test01 ~]# cat/proc/version

Linux version 2.6.9-22.elsmp (bhcompile@crowe.devel.redhat.com) (gcc version 3.4.4 20050721 (Red Hat

3.4.4-2) #1 SMP Mon Sep 18:00:54 EDT 2005

2) [root@q1test01 ~]# uname-a

Linux q1test01 2.6.9-22.elsmp #1 SMP Mon Sep 18:00:54 EDT x86_64 x86_64 x86_64 gnu/linux

3) [root@q1test01 ~]# Uname-r

2.6.9-22.elsmp

2. View Linux version:

1 log on to the server to perform lsb_release-a, listing all version information, for example:

[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-

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 the Linux execution cat/etc/issue, for example, as follows:

[Root@q1test01 ~]# Cat/etc/issue

Red Hat Enterprise Linux as Release 4 (Nahant Update 2)

Kernel R on a m

3 log in to the Linux execution cat/etc/redhat-release, for example, as follows:

[Root@q1test01 ~]# Cat/etc/redhat-release

Red Hat Enterprise Linux as Release 4 (Nahant Update 2)

Note: In this way you can see the exact version number, such as AS4 Update 1

4 log in to the Linux execution Rpm-q redhat-release, for example, as follows:

[root@q1test01 ~]# rpm-q Redhat-release

Redhat-release-4as-3

Note: In this way you can see a so-called release number, such as 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-> 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

Another: 3rd, 4) Two methods are only valid for Redhat Linux.

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