is it possible to make command to delete debugbar json files?

I am not familiar with Spark so use this index.php script: 

Code:

# CLEANER -  only shows last error logs and debugbar JSON files
  define('LOGFILE',  '../writable/logs/log-' .date('Y-m-d') .'.php');
  $ok = @unlink(LOGFILE);
  $ok = @array_map('unlink', glob("../writable/debugbar/*.json"));