RRDLASTUPDATE(1) rrdtool RRDLASTUPDATE(1)

NAME

rrdlastupdate - Return the most recent update to an RRD

SYNOPSIS

rrdtool lastupdate filename [--daemon|-d address]

DESCRIPTION

The lastupdate function returns the UNIX timestamp and the value
stored for each datum in the most recent update of an RRD.

filename
The name of the RRD that contains the data.

--daemon|-d address
Address of the rrdcached daemon. If specified, a "flush"
command is sent to the server before reading the RRD files.
This allows rrdtool to return fresh data even if the daemon
is configured to cache values for a long time. For a list of
accepted formats, see the -l option in the rrdcached manual.

rrdtool lastupdate --daemon unix:/var/run/rrdcached.sock /var/lib/rrd/foo.rrd

ENVIRONMENT VARIABLES

The following environment variables may be used to change the
behavior of "rrdtool lastupdate":

RRDCACHED_ADDRESS
If this environment variable is set it will have the same effect
as specifying the "--daemon" option on the command line. If both
are present, the command line argument takes precedence.

AUTHOR

Andy Riebs <andy.riebs@hp.com>

1.8.0 2022-03-14 RRDLASTUPDATE(1)