01-01-2011
Would this work?
history 1>>output.txt
Please note that all this script is written in NANO.
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LEARN ABOUT CENTOS
ifstat
IFSTAST(8) System Manager's Manual IFSTAST(8)
NAME
ifstat - handy utility to read net interface statistics
SYNOPSIS
ifstat [options] [interface [interface [...]]]
DESCRIPTION
This manual page documents briefly the ifstat command.
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.
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.
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>.
IFSTAST(8)