atq
[options] [users]List jobs created by the at command that are still in the queue. Normally, jobs are sorted by the order in which they execute. Specify the users whose jobs you want to check. If no users are specified, the default is to display all jobs if you're a privileged user; otherwise, only your jobs are displayed.
-c
Sort the queue according to the time the at command was given.
-n
Print only the total number of jobs in queue.