28 lines
642 B
Bash
Executable File
28 lines
642 B
Bash
Executable File
#!/bin/bash
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INTERVAL="1" # update interval in seconds
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if [ -z "$1" ]; then
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echo
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echo usage: $0 [network-interface]
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echo
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echo e.g. $0 eth0
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echo
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echo shows packets-per-second
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exit
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fi
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IF=$1
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while true
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do
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R1=`cat /sys/class/net/$1/statistics/rx_packets`
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T1=`cat /sys/class/net/$1/statistics/tx_packets`
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sleep $INTERVAL
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R2=`cat /sys/class/net/$1/statistics/rx_packets`
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T2=`cat /sys/class/net/$1/statistics/tx_packets`
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TXPPS=`expr $T2 - $T1`
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RXPPS=`expr $R2 - $R1`
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echo "TX $1: $TXPPS pkts/s RX $1: $RXPPS pkts/s"
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done
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