# Linux - check distribution release version

###### tags: `linux`

[ Ubuntu ]
-----------------------------------
lsb_release -a

[ CentOS ]
-----------------------------------
cat /etc/centos-release 
cat /etc/redhat-release

[ Fedora ]
-----------------------------------
cat /etc/issue
cat /etc/redhat-release
cat /etc/fedora-release
!!! Sample output
[ lsb_release -a ]
root@admin:~/my-cluster# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.04.3 LTS
Release: 14.04
Codename: trusty

[ uname -r ]
root@admin:~/my-cluster# uname -r
3.19.0-25-generic

[ cat /proc/version ]
root@admin:~# cat /proc/version
Linux version 3.19.0-25-generic (buildd@lgw01-20) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #26~14.04.1-Ubuntu SMP Fri Jul 24 21:16:20 UTC 2015

[ cat /etc/lsb-release ]
root@admin:~# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.3 LTS"

[ cat /etc/os-release ]
root@admin:~# cat /etc/os-release
NAME="Ubuntu"
VERSION="14.04.3 LTS, Trusty Tahr"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 14.04.3 LTS"
VERSION_ID="14.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"