Tim,
I have finally had enough time to have a look at the code, and this change is
easy to implement. I completely agree that it is a useful feature, since it
allows for shorter notation of times. Therefore I'll try to release a separate
version soon that has this feature built in.
In addition, the Calendar rule documentation also needs some additions - if
vixie cron sees non-asterisk definitions for date and weekday, it will (at
least according to its manual) logically OR them together, while this is not
the case for SEC (conditions are always joined by AND).
IMHO, SEC's AND-behavior is highly useful -- e.g., the expression "0 1 25-31 10
7" allows for executing a specific command at the moment when the daylight
savings time is replaced with the normal time (last Sunday in October, 01:00
UTC).
with kind regards,
risto
-------------------------------------
hi Tim,
I will look into this and check whether it is something that can be
implemented without larger issues.
best regards,
risto
Tim Peiffer wrote:
> May I have a feature check or request for SEC ?
>
> I would like to use the '/' in a calendar time and date fields to make
> it compatible with the cron that Paul Vixie wrote. I wish to have
> calendar functions that are addressable in steps. The format '*/5 * * *
> * is much more compact than stating '0,5,10,15,20,25,30,35,40,45,50,55 *
> * * *'
>
> type=Calendar
> time=*/5 * * * *
> desc=examine my piggy bank resources
> action=spawn /usr/local/bin/CheckPiggyBank
>
> Excerpt from crontab(5).
> Step values can be used in conjunction with ranges. Following a range
> with ‘‘/<number>’’ specifies skips of the number’s value through the
> range. For example, ‘‘0-23/2’’ can be used in the hours field to spec-
> ify command execution every other hour (the alternative in the V7 stan-
> dard is ‘‘0,2,4,6,8,10,12,14,16,18,20,22’’). Steps are also permitted
> after an asterisk, so if you want to say ‘‘every two hours’’, just use
> ‘‘*/2’’.
>
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