Undo the commands back through a command descriptor
See undo for an introduction to undoing commands.
Examples: :ubt :max ; undo back through the most recent command ; (which just means undo the most recent command) :ubt :x ; same as :ubt :max :u ; same as :ubt :max with no questions asked :ubt fn ; undo back through the introduction of fn ; (including all the other events in fn's block) :ubt 5 ; undo back through the fifth command executed :ubt (:max -4) ; undo back through the most recent five commands :ubt (:x -4) ; undo back through the most recent five commands
It is important to remember that a command may create several events. That is, the command that introduces
See u for how to undo just the latest command. See ubu, ubu!, and ubu? for how to undo back up to, but not including, the current command.