How To Repair Databases with Cronjob

I'm hoping someone might have an easy solution with an issue I repeatedly have.

I have a few servers where I have cronjobs that add new news to drupal sites periodically through the day. That works fine and dandy. The problem that comes up from time to time is I get a database error that causes the site to stop working. Well I can get into WHM and run the "Repair a Database" function and it fixes the problem every time.

I'm wondering if there is a way I can setup "ONE" cronjob that will run this repair on "ALL" databases to fix any errors that might occur?

I do understand I can setup a cronjob for every database, but I'm hoping one of you really smart linux guys might know of a way to do this so I don't have to add a cronjob each time there is a new site added.

For example, to run a repair on one database it is something like this:

scripts/repairmysql?user=XXXXX&submit=Repair+Database

Is there a way to make it so the XXXXX is a "allusers" or even leave that part out so it goes methodically down the list and runs a repair on all of them?

I appreciate any help.