Command for viewing the version number in Linux

In Linux, view the command of the version number-general Linux technology-Linux technology and application information. The following is a detailed description. 1. Run the command cat/proc/version to view the kernel version.
Uname-

Uname-rcat/etc/issue

Man uname

2. view the linux version: Copy as follows:

1) log on to the server and execute lsb_release-a to list all version information, for example:
[Root@3.5.5Biz-46 ~] # Lsb_release-

Lsbversion: 1.3

Distributor ID: RedHatEnterpriseAS

Descr restart ption: Red Hat Enterprise Linux AS release 4 (Nahant Update 1)

Release: 4

Codename: NahantUpdate1

[Root@3.5.5Biz-46 ~] #

This command applies to all linux releases, including Redhat, SuSE, and Debian.

2) log on to linux and run cat/etc/redhat-release, for example:
[Root@3.5.5Biz-46 ~] # Cat/etc/redhat-release

Red Hat Enterprise Linux AS release 4 (Nahant Update 1)

[Root@3.5.5Biz-46 ~] #

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

3) log on to linux and execute rpm-q redhat-release, for example
[Root@3.5.5Biz-46 ~] # Rpm-q redhat-release

Redhat-release-4AS-2.4

[Root@3.5.5Biz-46 ~] #

In this way, we can see a so-called release number. For example, the above example is 2.4.

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

Note: method (2) (3) is only valid for Redhat Linux.