To view the Linux system version number command

One. To view the kernel version number command:

1) [[Email Protected]_sys ~]# cat/proc/version
Linux version 2.6.18-238.el5 ([email protected]) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-50)) #1 SMP Sun Dec 1 9 14:22:44 EST 2010
[[Email Protected]_sys ~]#

2) [[Email Protected]_sys ~]# uname-r
2.6.18-238.el5
3) [[Email Protected]_sys ~]# uname-a
Linux sor_sys.99bill.com 2.6.18-238.el5 #1 SMP Sun Dec 14:22:44 EST x86_64 x86_64 x86_64 gnu/linux
[[Email Protected]_sys ~]#

Two. To view the Linux version number:

1) Log in to the server to run lsb_release-a, you can list all the version number information, such as:

[Email Protected]_sys ~]# lsb_release-a
LSB Version:: core-4.0-amd64:core-4.0-ia32:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-ia32: Graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-ia32:printing-4.0-noarch
Distributor Id:redhatenterpriseas
description:red Hat Enterprise Linux as Release 4 (Nahant Update 4)
Release:4
Codename:nahantupdate4
[[Email Protected]_sys ~]#

Note: This command applies to all Linux, including Redhat, SuSE, Debian and other distributions.

2) Log in to the Linux run cat/etc/issue, such as the following:

[Email Protected]_sys ~]# cat/etc/issue
Red Hat Enterprise Linux Server release 5.6 (Tikanga)
Kernel \ r on an \m

[[Email Protected]_sys ~]#

3) Log in to the Linux run cat/etc/redhat-release, such as the following:

[Email Protected]_sys ~]# cat/etc/redhat-release
Red Hat Enterprise Linux as Release 4 (Nahant Update 4)
[[Email Protected]_sys ~]#

Note: In this way, you can see the detailed version directly, for example AS4 Update 1

4) log in to Linux to run Rpm-q Redhat-release, such as the following:

[Email protected]_sys ~]# rpm-q redhat-release
redhat-release-5server-5.6.0.3
[[Email Protected]_sys ~]#

Note: A so-called release number can be seen in this way, for example the top sample is 5

There is a corresponding relationship between the release number and the actual version number, such as the following:

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

5) [[Email Protected]_sys ~]# File/bin/bash
/bin/bash:elf 64-bit LSB executable, AMD x86-64, version 1 (SYSV), for Gnu/linux 2.6.9, dynamically linked (uses shared L IBS), for Gnu/linux 2.6.9, stripped
[[Email Protected]_sys ~]#

6) [[Email Protected]_sys ~]# File/bin/cat
/bin/cat:elf 64-bit LSB executable, AMD x86-64, version 1 (SYSV), for Gnu/linux 2.6.9, dynamically linked (uses shared Li BS), for Gnu/linux 2.6.9, stripped
[[Email Protected]_sys ~]#

To view the Linux system version number command