atrm
[options] [users | jobIDs]Remove jobs queued with at that match the specified jobIDs. A privileged user may also specify the users whose jobs are to be removed.
-a
Remove all jobs belonging to the current user. (A privileged user can remove all jobs.)
-f
Remove jobs unconditionally, suppressing all information regarding removal.
-i
Prompt for y
(remove the job) or n
(do not remove).