Symfony\Component\Console\Application::getCommandName PHP Method

    protected function getCommandName(InputInterface $input)
    {
        return $this->singleCommand ? $this->defaultCommand : $input->getFirstArgument();
    }

 /**
  * @param InputInterface $input L'interface de saisie
  *
  * @return string
  */
 protected function getCommandName(InputInterface $input)
 {
     if (null !== $this->commandName) {
         return $this->commandName;
     }
     return parent::getCommandName($input);
 }