On Sun, March 29, 2015 10:37 pm, Jeremy Laidman wrote:
On 30 March 2015 at 14:37, J.C. Cleaver <user-87556346d4af@xymon.invalid> 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