add('help', function ($args, $shell) { $shell->write("This could be usage help :)\n"); }); $commands->on('notfound', function ($command, $shell) { $shell->write("Command not found: {$command}. Try help\n"); }); $shell->on('prompt', function ($shell) { $shell->setPrompt(date(">> ")); }); $shell->on('input', $commands);