RRDFIRST(1) rrdtool RRDFIRST(1) (NAME) rrdfirst - RRA RRD (SYNOPSIS) rrdtool first filename [--rraindex number] [--daemon|-d address] (DESCRIPTION) first (UNIX timestamp) RRA RRD . filename RRD . --rraindex number () RRA . . RRA rrdtool info . --daemon|-d address rrdcached. -l rrdcached . rrdtool first --daemon unix:/var/run/rrdcached.sock /var/lib/rrd/foo.rrd (AUTHORS) Burton Strauss Steve Shipway . 1.11.0 2026-08-08 RRDFIRST(1)