[RndTbl] Potentially long cron jobs

[Kevin McGregor]

I want to run something via cron which will take anywhere from less than a
minute to a day or so (possibly). Most of the time it will be well under an
hour, and I'd like it to run hourly, except if it's still running, in which
case nothing more need be done.

What the best way to do that?

Kevin
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