[Xymon] Reporting

[J.C. Cleaver]

On Sun, March 29, 2015 10:37 pm, Jeremy Laidman wrote:
> On 30 March 2015 at 14:37, J.C. Cleaver <cleaver at terabithia.org> wrote:
>
>> For the start and end options to rrdtool, it's actually expecting unix
>> epoch timestamps.
>>
>
> Actually, rrdgraph also has pretty good parsing, not necessarily requiring
> epoch-times.  For example you can say:
>
>    -s "end-1week" -e "now-2d"
>
> meaning "from 2 days ago to one week before then".
>
> and
>
>   -s "-1week" -e "s+2d"
>
> meaning "from 1 week ago to 2 days after then".  ("s"="start"; "e"="end";
> "-1week" = "now-1week").
>
> Can also specify dates in human-readable form as long as they comply with
> the AT-STYLE time specification:
>
> https://oss.oetiker.ch/rrdtool/doc/rrdfetch.en.html#IAT_STYLE_TIME_SPECIFICATION
>
> I think the only error in this:
>
> rrdtool fetch $I MAX -r 900 -s "12am Mar 1" -e "12am Mar 27" | egrep
>
> is that you specified "12am" instead of "12:00am" and didn't specify a
> year.  So try "12:00am Mar 1 2015" for your start time.  If you don't
> specify a time of day, the year doesn't seem to be required, and I would
> expect would default to the current year.
>
> J
>


Nifty! I stand corrected... Had no idea RRDtool's date parsing was that
advanced :)


-jc