Extracts interfaces name and IP address from ifconfig

iplist.rb

#!/usr/bin/env ruby

`ifconfig -a`.split(/\n[^\t]/).each do |iface|
    name = iface.match(/^(.*?):/)[1]
    
    match = iface.match(/inet ((\d+\.?){4})/)
    if match
        inet = match[1]
        puts "#{name}\t#{inet}"
    end
end