_R_R_D_F_I_R_S_T(1)                         rrdtool                        _R_R_D_F_I_R_S_T(1)

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

SSYYNNOOPPSSIISS
       rrrrddttooooll ffiirrsstt _f_i_l_e_n_a_m_e [----rrrraaiinnddeexx _n_u_m_b_e_r] [----ddaaeemmoonn|--dd _a_d_d_r_e_s_s]

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

       _f_i_l_e_n_a_m_e
               The name of the RRRRDD that contains the data.

       ----rrrraaiinnddeexx _n_u_m_b_e_r
               The  index  number  of  the  RRRRAA that is to be examined. If not
               specified, the index defaults to zero. RRRRAA index numbers can be
               determined through rrrrddttooooll iinnffoo.

       ----ddaaeemmoonn|--dd _a_d_d_r_e_s_s
               Address of the  rrdcached  daemon.   For  a  list  of  accepted
               formats, see the --ll option in the rrdcached manual.

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

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

1.10.0                            2026-05-19                       _R_R_D_F_I_R_S_T(1)
