In Drush what is the difference between ard and arb?

Question

In Drush what is the difference between ard and arb commands? When should I use one over the other?

Answer 1

They're actually aliases of one another, so you can use either.

If you type drush help arb you'll see at the bottom:

Aliases: ard, archive-backup, arb

And for posterity, drush help ard:

Aliases: ard, archive-backup, arb