The <info>%command.name%</info> command generates a new controller class.

<info>php %command.full_name% CoolStuffController</info>

If the argument is missing, the command will ask for the controller class name interactively.

If you have the <info>symfony/twig-bundle</info> installed, a Twig template will also be
generated for the controller.

<info>composer require symfony/twig-bundle</info>

You can also generate the controller alone, without template with this option:

<info>php %command.full_name% --no-template</info>