traceroute & ping script

traceping.rb

#! /usr/bin/ruby
require "net/ping"

traceroute  =  `traceroute #{ARGV[0]}`

routepath = traceroute.split("\n")[1..-1].map do|s|
    r = s.split(" ")[2].delete("()*")
    r if r.length > 0
end
routepath.compact!
loop do
  routepath.each_with_index do |path,i|
     pinger = Net::Ping::External.new(path)
     #print "\r" + " "*i
     if pinger.ping?
        print "\e[34m"
        puts   '○'  + path
        print "\e[0m"
     else
        print "\e[31m"
        puts   '×'  + path
        print "\e[0m"
     end
  end
  sleep 1
 print "\e[#{routepath.length}A"
 STDOUT.flush
end