NAME

       ifstat - handy utility to read network interface statistics

SYNOPSIS

       ifstat [ OPTIONS ] [ INTERFACE_LIST ]

       INTERFACE_LIST := INTERFACE_LIST | interface

DESCRIPTION

       ifstat  neatly  prints  out network interface statistics.  The utility keeps records of the previous data
       displayed in history files and by default only shows difference between the last and  the  current  call.
       Location   of  the  history  files  defaults  to  /tmp/.ifstat.u$UID  but  may  be  overridden  with  the
       IFSTAT_HISTORY environment variable. Similarly, the  default  location  for  xstat  (extended  stats)  is
       /tmp/.<xstat name>_ifstat.u$UID.

OPTIONS

       -h, --help
              Show summary of options.

       -V, --version
              Show version of program.

       -a, --ignore
              Ignore the history file.

       -d, --scan=SECS
              Sample statistics every SECS second.

       -e, --errors
              Show errors.

       -n, --nooutput
              Don't display any output.  Update the history file only.

       -r, --reset
              Reset history.

       -s, --noupdate
              Don't update the history file.

       -t, --interval=SECS
              Report average over the last SECS seconds.

       -z, --zeros
              Show entries with zero activity.

       -x, --extended=TYPE
              Show extended stats of TYPE. Supported types are:

                      cpu_hits - Counts only packets that went via the CPU.

ENVIRONMENT

       IFSTAT_HISTORY
              If set, it's value is interpreted as alternate history file path.

SEE ALSO

       ip(8)

AUTHOR

       ifstat was written by Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>.

       This manual page was written by Petr Sabata <contyk@redhat.com>.