View linux system version commands

Linuxversion2.6.9-22. ELsmp (bhcompile@crowe.devel.redhat.c

1. run the following command to view the kernel version:

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 19 18:00:54 EDT 2005

2) [root @ q1test01 ~] # Uname-

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 on to the server and execute lsb_release-a to list all version information, for example:

# Lsb_release-

LSB Version: core-3.0-amd64: core-3.0-ia32: core-3.0-noarch: 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 releases, including Redhat, SuSE, and Debian.

2) log on to linux and run cat/etc/issue, for example:

# Cat/etc/issue

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

Kernel \ r on an \ m

3) log on to linux and run cat/etc/redhat-release, for example:

# Cat/etc/redhat-release

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

Note: In this mode, you can see the specific version number, such as AS4 Update 1.

4) log on to linux and execute rpm-q redhat-release, for example:

# 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 the release number and the actual version, as shown below:

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

Other methods: 3rd) and 4) are only valid for Redhat Linux.
5) # file/bin/bash
/Bin/bash: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for GNU/Linux 2.6.9, dynamically linked (uses shared libs ), for GNU/Linux 2.6.9, stripped
6) # file/bin/cat
/Bin/bash: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for GNU/Linux 2.6.9, dynamically linked (uses shared libs ), for GNU/Linux 2.6.9, stripped