pkg://at-3.1.8-22.2.alpha.rpm:47691/HEADER  downloads

Name        : at                           Relocations: (not relocateable)
Version     : 3.1.8                             Vendor: Red Hat, Inc.
Release     : 22.2                          Build Date: Fri Feb  1 17:37:50 2002
Install date: (not installed)               Build Host: george.devel.redhat.com
Group       : System Environment/Daemons    Source RPM: at-3.1.8-22.2.src.rpm
Size        : 88495                            License: GPL
Packager    : Red Hat, Inc. <http://bugzilla.redhat.com/bugzilla>
Summary     : Job spooling tools.
Description :
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 /bin/sh.

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.