Find out your distribution

This page lists methods to determine which distribution a system belongs to. It is a pity but every distribution has its own way to find out what distribution you are using. So you have to try all of the below methods till you find a positive match:

To find out what distribution of linux your running (Ex. Ubuntu) try: lsb_release -a or cat /etc/*release or cat /etc/issue* or cat /proc/version

Open a console and enter: [ -e /etc/SuSE-release ] && echo This is a SuSE system. Open a console and enter: [ -e /etc/redhat-release ] && echo This is a redhat system. Open a console and enter: [ -e /etc/fedora-release ] && echo This is a fedora system. Open a console and enter: [ -e /etc/debian-version ] && echo This is a debian or ubuntu system. Open a console and enter: [ -e /etc/slackware-version ] && echo This is a slackware system. Open a console and enter: lsb_release -rd
 * SUSE
 * Red Hat
 * Fedora
 * Debian
 * Slackware
 * Ubuntu

Kernel version information
To find out your kernel version, use the command uname -a

To find out additional info about the C compiler that built the kernel, use cat /proc/version

References:

whatsmyos