List duplicate rails helper methods

gistfile1.rb

h = Hash.new(0)
Dir.glob(Rails.root.join('app','helpers','*.rb')).each do |file|
  File.read(file).lines.each do |line|
    if line[/^[ ]+def ([a-zA-Z0-9!_]+)/]
      h[$1] += 1
    end
  end
end
h.each {|key, value| puts key if value > 1}