_R_R_D_L_A_S_T_U_P_D_A_T_E(1)                     rrdtool                    _R_R_D_L_A_S_T_U_P_D_A_T_E(1)

NNAAMMEE
     rrdlastupdate - Return the most recent update to an RRD

SSYYNNOOPPSSIISS
     rrrrddttooooll llaassttuuppddaattee _f_i_l_e_n_a_m_e [----ddaaeemmoonn|--dd _a_d_d_r_e_s_s]

DDEESSCCRRIIPPTTIIOONN
     The llaassttuuppddaattee function returns the UNIX timestamp and the value stored for
     each datum in the most recent update of an RRD.

     _f_i_l_e_n_a_m_eThe name of the RRRRDD that contains the data.

     ----ddaaeemmoonn|--dd _a_d_d_r_e_s_s
             Address of the rrdcached daemon. If specified, a "flush" command is
             sent  to  the server before reading the RRD files. This allows rrrrdd‐‐
             ttooooll to return fresh data even if the daemon is configured to cache
             values for a long time.  For a list of accepted formats, see the --ll
             option in the rrdcached manual.

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

EENNVVIIRROONNMMEENNTT VVAARRIIAABBLLEESS
     The following environment variables may be used to change the  behavior  of
     "rrdtool lastupdate":

     RRRRDDCCAACCHHEEDD__AADDDDRREESSSS
         If  this  environment  variable  is set it will have the same effect as
         specifying the "--daemon" option on  the  command  line.  If  both  are
         present, the command line argument takes precedence.

AAUUTTHHOORR
     Andy Riebs <andy.riebs@hp.com>

1.10.0                             2026-05-23                   _R_R_D_L_A_S_T_U_P_D_A_T_E(1)
