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check_netio 2.47 KiB
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#!/bin/bash
# ======================================================================
#
# Check NETIO to show traffic over all network cards
# data besed on /proc/net/dev 
#
# ----------------------------------------------------------------------
# 2020-07-08  v1.0  <axel.hahn@iml.unibe.ch>
# ======================================================================


. `dirname $0`/inc_pluginfunctions

# ----------------------------------------------------------------------
# MAIN
# ----------------------------------------------------------------------


tmpfile1=`mktemp`
tmpfile2=`mktemp`

typeset -i iRead=0
typeset -i iTrans=0
typeset -i iSpeedRead=0
typeset -i iSpeedTrans=0
typeset -i iTotalRead=0
typeset -i iTotalTrans=0

cat /proc/net/dev | grep -E "(eth|en[ops][0-9]*)" >$tmpfile1

for myinterface in `cat $tmpfile1 | cut -f 1 -d ":" | tr -d " "`
do
    echo >>$tmpfile2
    echo "--- $myinterface" >> $tmpfile2
    line=`grep "${myinterface}\:" $tmpfile1` 
    # echo "SOURCE: $line" >> $tmpfile2

    # total value of byte
    iRead=`echo $line | awk '{ print $2 }'`
    iTrans=`echo $line | awk '{ print $10 }'`

    # speed in byte per sec based on last stored value and its age
    iSpeedRead=` ph.perfdeltaspeed "netio-${myinterface}-rx" $iRead`
    iSpeedTrans=`ph.perfdeltaspeed "netio-${myinterface}-tx" $iTrans`

    # echo " > receive : $iRead .. $iSpeedRead byte/s"   >> $tmpfile2
    # echo " > transmit: $iTrans .. $iSpeedTrans byte/s" >> $tmpfile2

    printf "%15s %15s %10s %-10s \n"  "receive:"   $iRead  $iSpeedRead  "byte/s" >> $tmpfile2
    printf "%15s %15s %10s %-10s \n"  "transmit:"  $iTrans $iSpeedTrans "byte/s" >> $tmpfile2

    # to store data for each interface
    # mylabel=`echo $line | awk '{ print $1 }' | tr [:upper:] [:lower:]`
    # ph.perfadd "${myinterface}-rx"   "$iSpeedRead"
    # ph.perfadd "${myinterface}-tx"   "$iSpeedTrans"

    iTotalRead=$iTotalRead+$iSpeedRead
    iTotalTrans=$iTotalTrans+$iSpeedTrans
done

echo "" >> $tmpfile2
echo "--- total:" >> $tmpfile2
# echo " > receive : $iTotalRead byte/s"  >> $tmpfile2
# echo " > transmit: $iTotalTrans byte/s" >> $tmpfile2
printf "%15s %10s %-10s \n"  "receive:"   $iTotalRead  "byte/s" >> $tmpfile2
printf "%15s %10s %-10s \n"  "transmit:"  $iTotalTrans "byte/s" >> $tmpfile2

ph.perfadd "rx"   "$iTotalRead"
ph.perfadd "tx"   "$iTotalTrans"

ph.status "Network IO ... IN `ph.toUnit $iTotalRead M` MB/s >> [host] >> `ph.toUnit $iTotalTrans M` MB/s OUT"

# cat $tmpfile1
cat $tmpfile2

rm -f $tmpfile1 $tmpfile2

ph.exit