GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
Debian 6.0.0(Squeeze) |
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rrdlast(1) |
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rrdlast − Return the date of the last data sample in an RRD
rrdtool last filename [−−daemon address]
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 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
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.
Russ Wright <rwwright@home.com>
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rrdlast(1) | |