bwbar - generates text and graphical readout of current bandwidth use.

       Written by Nacho Barrientos Arias <chipi@criptonita.com>.

       Report bugs to <hpa@zytor.com>.

       Copyright © 1999-2001 H. Peter Anvin - All Rights Reserved
       This  program  is  free  software;  you  can  redistribute it and/or modify it under the terms of the GNU
       General Public License as published by the Free Software Foundation, Inc.

       Generates text and graphical readout of current bandwidth use.

-i, --input
              Measure input bandwidth.

       -g, --GBps
              Bandwidth is measured in GB/s.

       -G, --Gbps
              Bandwidth is measured in Gbit/s.

       -k, --kbps
              Bandwidth is measured in kbit/s.

       -K, --KBps
              Bandwidth is measured in KB/s.

       -m, --MBps
              Bandwidth is measured in MB/s.

       -M, --Mbps
              Bandwidth is measured in Mbit/s.

       -o, --output
              Measure output bandwidth.

       Default values are -M and -o.

       bwbar - generates text and graphical readout of current bandwidth use.

-b, --border=N
              Set border width of the graphical bar to N (default 1 pixel).

       -d, --directory=N
              Output directory is N.

       -f, --text-file=N
              Set N as name of the text output file (default ubar.txt).

       -h, --help
              Display usage.

       -p, --png-file=N
              Set N as name of the graphical bar file (default ubar.png).

       -t, --interval=N
              The poll interval in seconds is N (default 15 seconds).

       -x, --width=N
              Set the width of the graphical bar to N (default 600 pixels).

       -y, --height=N
              Set the height of the graphical bar to N (default 4 pixels).

       You can get all the available information for bwbar in:

              http://www.kernel.org/pub/software/web/bwbar/

bwbar 1.2.3                                       Apr. 18, 2006                                         BWBAR(8)

bwbar [-i|-o] [-g|-G|-k|-K|-m|-M] [OPTION]... INTERFACEMAX_MBPS