I want a backup task to run once a week.
The computer I want to do this is a laptop, that is often off / sleeping. I would like the task to run when the computer wakes, if the computer was asleep when it was supposed to run.
Otherwise the chance of anything actually getting backed up is pretty slim.
Is there an application or MacOSX feature that does this?
My understanding of cron jobs is that if the computer is not on when it's supposed to run they will not get run on awakening, so that doesn't look like what I want.