linux系のバージョンを調べる方法 - 技術いろいろ @ ウィキ

引用サイト
http://oshiete.goo.ne.jp/qa/2393841.html

(1) Debian系 Debian/GNU Linux

# cat /etc/debian_version
3.1

(2) RedHat系

CentOS

# cat /etc/redhat-release
CentOS release 4.3 (Final)

Fedora Core

# cat /etc/redhat-release
Fedora Core release 5 (Bordeaux)

Vine Linux

# cat /etc/vine-release
Vine Linux 3.2 (Ducru Beaucaillou)

Turbo Linux

# cat /etc/turbolinux-release
Turbolinux Server 8.0 (Viper)