sample_wol.rb

#!/usr/bin/ruby
require 'socket'

begin
  addr = ['<broadcast>', 9]
  
  UDPSock = UDPSocket.new
  UDPSock.setsockopt(Socket::SOL_SOCKET, Socket::SO_BROADCAST, true)
  
  mac_address = ARGV[0]
  mac_address = mac_address.split(':').map(&:hex).map(&:chr).join('') * 16
  
  data = "\xFF" * 6
  data = "#{data}#{mac_address}"
  
  puts "Wake-On-Lan packet send to MAC address #{ARGV[0]}"
  
  
  UDPSock.send(data, 0, '<broadcast>', 9)
rescue
  puts("usage: sample_wol.rb <mac-address>")
  puts("       sample_wol.rb 01:02:03:04:05:06")
end