undo commands, without a query or an error
Major Section:  HISTORY

:ubt! :x-4

The keyword command :ubt! is the same as :ubt, but with related queries suppressed appropriately, and with a guarantee that it is ``error-free.'' More precisely, the error triple returned by :ubt! will always have a first component of nil. :Oops will undo the last :ubt!. See ubt, see ubu, and see u.