rrdlast - Man Page
Return the date of the last data sample in an RRD
Synopsis
rrdtool last filename [--daemon|-d address]
Description
The last function returns the UNIX timestamp of the most recent update of the RRD.
- filename
The name of the RRD that contains the data.
- --daemon|-d address
Address of the rrdcached daemon. If specified, a
flushcommand 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 last --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 last:
- RRDCACHED_ADDRESS
If this environment variable is set it will have the same effect as specifying the
--daemonoption on the command line. If both are present, the command line argument takes precedence.
Author
Russ Wright <rwwright@home.com> Daemon support added by Steve Shipway <steve@steveshipway.org>