Ruby - Platform independent way to determine IPs of all network interfaces?

Question

Is there an easy way in Ruby for me to get a list of the IP addresses for all network interfaces? It needs to work in Linux/Win/OSX and I\'d prefer to not have to parse ifconfi

Answer 1

As of Ruby 2.1, Socket#getifaddrs is available:

001:0> require 'socket'
=> true
002:0> Socket.getifaddrs.map { |i| i.addr.ip_address if i.addr.ipv4? }.compact
=> ["127.0.0.1", "192.168.1.121", "192.168.1.181"]