Ruby Port Scanner

Just a lil something i came up with in my spare time. Port scanning with RUBY ruby "prznscan.rb" open up a text editor with vim or nano or your choosing and use these lines of code download all the required’s

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require ‘rubygems’
require ‘net/ping’
puts "Enter IP Address to Scan:"
@ipaddress = gets
1.upto(65536)
{
|@x|
if Net::PingTCP.new(@ipaddress,@x)
puts "Response/Port Open #@ipaddress #@x"
else
puts "No Response / Port closed #@ipaddress #@x"
}
exit