rails generate controller Output directories:
create app/controllers/output_controller.rb
route get "output/directories"
invoke erb
create app/views/output
create app/views/output/directories.html.erb
invoke test_unit
create test/functional/output_controller_test.rb
invoke helper
create app/helpers/output_helper.rb
invoke test_unit
create test/unit/helpers/output_helper_test.rb