GIT – What I need to type to display version and other information such as Linux distribution name? How do I check Linux version number?
You need to use the following two commands:

[a] uname – Print kernel and system information.
[b] lsb_release – Print distribution-specific information.

[c] /proc/version file – Print running kernel information.

How to check linux kernel version number?

Open a shell prompt (or a terminal) and type the following command to see your current Linux kernel version:
$ uname -r
Sample outputs:

2.6.32-23-generic-pae

Or type the following command:
$ uname -mrs
Sample outputs:

Linux 2.6.32-23-generic-pae i686

To print all information, enter:
$ uname -a
Sample outputs:

Linux vivek-laptop 2.6.32-23-generic-pae #37-Ubuntu SMP Fri Jun 11 09:26:55 UTC 2010 i686 GNU/Linux

Where,

  • 2.6.32-23 – Linux kernel version number
  • pae – pae kernel type indicate that I’m accssing more than 4GB ram using 32 bit kernel.
  • SMP – Kernel that supports multi core and multiple cpus.

/proc/version file

Type the following command to see Linux version info:
$ cat /proc/version
Sample outputs:

Linux version 3.2.0-0.bpo.1-amd64 ( 3.2.4-1~bpo60+1) (ben@decadent.org.uk) (gcc version 4.4.5 ( 4.4.5-8) ) #1 SMP Sat Feb 11 08:41:32 UTC 2012

The above output identifies the kernel version that is currently running. It includes the contents of /proc/sys/kernel/ostype/proc/sys/kernel/osrelease, and/proc/sys/kernel/version files. For example:
$ cat /proc/sys/kernel/{ostype,osrelease,version}
Sample outputs:

Linux
3.2.0-0.bpo.1-amd64
#1 SMP Sat Feb 11 08:41:32 UTC 2012

Find Distribution Version

Type the following command:
$ cat /etc/*release
OR
$ lsb_release -a
Sample outputs:

No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 10.04 LTS
Release:	10.04
Codename:	lucid

Here is another output from my Debian based server:

lsb_release -a
No LSB modules are available.
Distributor ID:	Debian
Description:	Debian GNU/Linux 6.0.6 (squeeze)
Release:	6.0.6
Codename:	squeeze
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