Package at

Job spooling tools

http://ftp.debian.org/debian/pool/main/a/at

At and batch read commands from standard input or from a specified
file. At allows you to specify that a command will be run at a
particular time. Batch will execute commands when the system load
levels drop to a particular level. Both commands use user's shell.

You should install the at package if you need a utility for
time-oriented job control. Note: If it is a recurring job that will
need to be repeated at the same time every day/week, etc. you should
use crontab instead.

General Commands
Command Description
at queue, examine or delete jobs for later execution
File Formats
File Description
at.allow determine who can submit jobs via at or batch
System Administration
Command Description
atd run jobs queued for later execution
atrun run jobs queued for later execution