How To Get Ubuntu System Facts With Facter

Facter is a cross-platform Ruby library for retrieving facts from operating systems. It supports multiple resolution mechanisms, any of which can be restricted to working only on certain operating systems or environments. Facter is especially useful for retrieving things like operating system names, IP addresses, MAC addresses, and SSH keys. It is easy to extend Facter to include your own custom facts or to include additional mechanisms for retrieving facts.