rrdfirst (1) Linux Manual Page
rrdfirst – Return the date of the first data sample in an RRA within an RRD
Synopsis
rrdtool first filename [–rraindex number]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.