Deamon to execute a program automatically

[Tim Daniels @ Binary Systems]

In article <1991Jan22.174347.5680 at jato.jpl.nasa.gov> khioe at mona.Jpl.Nasa.Gov (Kent Hioe) writes:
>
>Hi, I need some information on how to create a deamon from the Xenix-OS.
>
>I would like to create a deamon that will execute a program at certain time
>every night. How can I do that ?
>
>ie, at 2:00 am I would like to execute data backup automatically.
>
How about using cron ? I use it to do backups all the time.