[Linux]Distribution version file for Fedora, Red-Hat, Debian & Ubuntu systems

Distribution version file for Fedora ->                 /etc/fedora-release Red-Hat ->               /etc/redhat-release Debian & Ubuntu ->  /etc/debian-version In Ubuntu ,  distribution release details can be seen in the file , /etc/lsb-release   Other distributions’s version file Slackware ->/etc/slackware-version SuSe -> /etc/SuSE-release Gentoo -> /etc/gentoo-release