fizzbuzz.rb

#!/usr/bin/env ruby
# -*- coding: utf-8 -*-

def fizzbuzz(n)
  if n % 3 == 0
    print "Fizz"
  end
  if n % 5 == 0
    print "Buzz"
  end
  if n % 3 * n % 5 != 0
    print n
  end
  print "\n"
end

for i in 1..(ARGV[0] ? ARGV[0].to_i : 100)
  fizzbuzz(i)
end