code: function lockAndLoad() {
  	// lock command execution
  
  	if (!setFilePid(CMD_LOCK_FILE)) {
  		err(chalk.red.bold('A command is already running, aborting...'));
  
  		process.exit(EXIT_LOCKED);
  
  		// abort the normal code flow
  
  		return interrupt();
  	}
  
  	process.once('exit', function () {
  		// using "exit" ensures that it gets removed, even if there was an exception
  
  		destroyFilePid(CMD_LOCK_FILE);
  	});
  
  	return loadAppStatus();
  }
docs: The user is trying to run a daemonizer command. Lock daemon command execution for the duration of the process, and return the app's current state from APP_LOCK_FILE.