grant permissions to a user on multiple mysql databases
# grant the following perms to 'w1zk1d' on all localhost db's with a name prefix of 'drupal_' ...
GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, INDEX, ALTER, LOCK TABLES, CREATE TEMPORARY TABLES ON `drupal_%`.* TO 'w1zk1d'@'localhost' IDENTIFIED BY 'kick@ss';