rrdlast(1)

rrdlast1

Return the date of the last data sample in an rrd

Usage

rrdtool last filename [{--daemon | -d address}]

Overview

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 "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 last --daemon unix:/var/run/rrdcached.sock /var/lib/rrd/foo.rrd

Environment

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 "--daemon" option on the command line. If both are present, the command line argument takes precedence.

Releases

14 releases since Debian 2.2 (Potato); the text changed 13 times.

  1. 2.2
  2. 3.0
  3. 3.1
  4. 4.0
  5. 5.0
  6. 6.0
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13
  14. Arch

--daemon until Debian 8 (Jessie).

Author

Russ Wright <[email protected]> Daemon support added by Steve Shipway <[email protected]>

From rrdtool 1.11.0-2 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.