Red Hat Linux 6: Visual QuickPro Guide

Scheduling Jobs

Using the at command, you can schedule commands for execution at a specified time. If you need to schedule repeated execution of a command, you can add the command to the cron file for a user.

To send an email with at:

1.	At the command prompt, type at followed by a time expression (see sidebar). For example, type at teatime + 5 minutes
2.	Yes, Virginia, teatime is a valid time expression for use with at (it means 4:00 P.M.), so teatime + 5 minutes means 4:05 P.M.
3.	Press Enter. On the new line, the shell prompt will be replaced with an at prompt, at> (Figure 12.1). Each valid command you type at the at> prompt will be executed at the specified time.
4.	Give your email a subject and addressee: for example, at> mail –s "Lemon ...