rails command to create controller code example
Example: how to generate a controller in rails
$ rails generate controller Greetings hello
create app/controllers/greetings_controller.rb
route get 'greetings/hello'
invoke erb
create app/views/greetings
create app/views/greetings/hello.html.erb
invoke test_unit
create test/controllers/greetings_controller_test.rb
invoke helper
create app/helpers/greetings_helper.rb
invoke test_unit
invoke assets
invoke scss
create app/assets/stylesheets/greetings.scss