Skip to content

Instantly share code, notes, and snippets.

@xiangchu0
Created November 8, 2019 05:46
Show Gist options
  • Save xiangchu0/887f7192a3756c8721788d419e002c33 to your computer and use it in GitHub Desktop.
Save xiangchu0/887f7192a3756c8721788d419e002c33 to your computer and use it in GitHub Desktop.
linux network monitoring script
#!/bin/bash
INTERVAL="1" # update interval in seconds
if [ -z "$1" ]; then
echo
echo usage: $0 [network-interface]
echo
echo e.g. $0 eth0
echo
echo shows packets-per-second
exit
fi
IF=$1
while true
do
R1=`cat /sys/class/net/$1/statistics/rx_packets`
T1=`cat /sys/class/net/$1/statistics/tx_packets`
sleep $INTERVAL
R2=`cat /sys/class/net/$1/statistics/rx_packets`
T2=`cat /sys/class/net/$1/statistics/tx_packets`
TXPPS=`expr $T2 - $T1`
RXPPS=`expr $R2 - $R1`
echo "TX $1: $TXPPS pkts/s RX $1: $RXPPS pkts/s"
done
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment