I'm trying to keep things separate.
I've been pointed in the direction of
cron+ and in the config line I saw this:
0 30 6 * * ? *
Digging I find this:
* Asterisks indicate that the cron expression matches for all values of the field. For example, "*" in the minute field means every minute ? Question marks are used to specify 'no specific value' and is allowed for the day-of-month and day-of-week fields. It is used instead of the asterisk (*) for leaving either day-of-month or day-of-week blank.
(My hand is up)
What's the difference?
I see the words, but their meaning is lost for me.