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#!/bin/bash
sleep=1
int=$(ip addr show | grep "192\.168\.2\." | awk '{ print $NF }')
stats1=($(ethtool -S $int | grep -P "rx\d?_(packets|bytes)" | awk '{ print $2 }'))
sleep $sleep
stats2=($(ethtool -S $int | grep -P "rx\d?_(packets|bytes)" | awk '{ print $2 }'))
for i in "${!stats1[@]}"; do
diff=$(bc <<< "(${stats2[$i]} - ${stats1[$i]}) / $sleep")
if [ $((i & 1)) -eq 0 ]; then
if [ $i -lt 2 ]; then
echo -n "Total:"
elif [ $i -lt 4 ]; then
echo -n "Phi :"
else
echo -n "Queue:"
fi
printf "packets: %9.3f kpps" $(bc -l <<< "1 * $diff / 1000")
else
printf ", bandwidth: %9.3f Gb/s\n" $(bc -l <<< "8. * $diff / 1024 / 1024 / 1024")
fi
#echo $i
done
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