How do I know which distro I am running on?

[Ken Moffat]

ken at noisy:~$ cat /etc/issue


       _     _ _                          _
      | |   (_) |__  _ __ __ _ _ __   ___| |_
      | |   | | '_ \\| '__/ _` | '_ \\ / _ \\ __|
      | |___| | |_) | | | (_| | | | |  __/ |_
      |_____|_|_.__/|_|  \\__,_|_| |_|\\___|\\__|

Libranet GNU/Linux 2.7 \m \n \l

ken at noisy:~$