NAME

rrdfirst - Return the date of the first data sample in an RRA within an RRD

SYNOPSIS

rrdtool first filename [--rraindex number] [--daemon|-d address]

DESCRIPTION

The first function returns the UNIX timestamp of the first data sample entered into the specified RRA of the RRD file.

filename

The name of the RRD that contains the data.

--rraindex number

The index number of the RRA that is to be examined. If not specified, the index defaults to zero. RRA index numbers can be determined through rrdtool info.

--daemon|-d address

Address of the rrdcached daemon. For a list of accepted formats, see the -l option in the rrdcached manual.

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

AUTHOR

Burton Strauss <Burton@ntopSupport.com> Daemon support added by Steve Shipway <steve@steveshipway.org>