use: xport
http://oss.oetiker.ch/rrdtool/doc/rrdxport.en.html
the programming interfaces have the function as well.
________________________________
From: Rafal Gwizdala <rafal.gwizd...@gmail.com>
To: rrd-users@lists.oetiker.ch
Sent: Tuesday, June 26, 2012 2:22 AM
Subject: [rrd-users] retrieving data from multiple files
Hi, I'd like to retrieve most recent (last update) data from multiple rrd files
in a fastest possible way.
For single file it can be easily done with rrd info or rrd fetch, but is there
some equivalent for reading many files at once?
Rrdgraph does it internally so maybe there's some command to output text data
to stdout instead of graph file?
Best regards
RG
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