35 lines
1.2 KiB
Bash
35 lines
1.2 KiB
Bash
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#!/bin/sh
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# Copy the contents of this file to the clipboard, then get a terminal open on your device and enter:
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# $ cat > n.sh
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# [Ctrl+V] or Right Click, Paste. Then [Ctrl+D].
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# chmod +x n.sh
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# To run: ./n.sh eth0
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SLP=3 # display / sleep interval
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DEVICE=$1
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IS_GOOD=0
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for GOOD_DEVICE in `grep \: /proc/net/dev | awk -F: '{print $1}'`; do
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if [ "$DEVICE" = $GOOD_DEVICE ]; then
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IS_GOOD=1
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break
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fi
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done
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if [ $IS_GOOD -eq 0 ]; then
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echo "Device not found. Should be one of these:"
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grep ":" /proc/net/dev | awk -F: '{print $1}' | sed s@\ @@g
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exit 1
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fi
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while true; do
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LINE=`grep $1 /proc/net/dev | sed s/.*://`;
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RECEIVED1=`echo $LINE | awk '{print $1}'`
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TRANSMITTED1=`echo $LINE | awk '{print $9}'`
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TOTAL=$(($RECEIVED1+$TRANSMITTED1))
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sleep $SLP
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LINE=`grep $1 /proc/net/dev | sed s/.*://`;
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RECEIVED2=`echo $LINE | awk '{print $1}'`
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TRANSMITTED2=`echo $LINE | awk '{print $9}'`
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SPEED=$((($RECEIVED2+$TRANSMITTED2-$TOTAL)/$SLP))
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INSPEED=$((($RECEIVED2-$RECEIVED1)/$SLP))
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OUTSPEED=$((($TRANSMITTED2-$TRANSMITTED1)/$SLP))
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printf "In: %12i KB/s | Out: %12i KB/s | Total: %12i KB/s\n" $(($INSPEED/1024)) $(($OUTSPEED/1024)) $(($SPEED/1024)) ;
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done;
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