The schtasks command is the command line interface that can be used instead of the GUI application Scheduled Tasks in the Control Panel. If you are a die-hard command line worker, you will like schtasks.
Note
The schtasks command is the replacement for the old AT command. Windows still supports that command, but schtasks is much more flexible. If you have written script or batch files that use the AT command, you might want to consider rewriting them to use this newer command, which more closely matches what you can do with GUI to the Schedule service.