carlos@carlos-laptop:~$ sudo /opt/lampp/bin/php /opt/lampp/htdocs/mediawiki/unix/maintenance/dumpBackup.php --current
$wgDBadminuser = root;
$wgDBadminpassword = xxxxxxxxx;
$wgEnableProfileInfo = true;
DB connection error:  Access denied for user 'carlos'@'localhost' (using password: NO)
carlos@carlos-laptop:~$