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#!/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 |
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Fixed syntax error:
$ /bin/bash -n ~/scripts/shell_scripts/pps.sh
/home/taras/scripts/shell_scripts/pps.sh: line 27: syntax error: unexpected end of file