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#!/bin/bash
file="/tmp/network"
if ! [ -f $file ]; then
echo 0 > $file
echo 0 >> $file
fi
tx_prev=$(cat $file | sed 1q)
rx_prev=$(cat $file | sed '2q;d')
cat /sys/class/net/wlp3s0/statistics/rx_bytes > $file
cat /sys/class/net/wlp3s0/statistics/tx_bytes >> $file
tx_now=$(cat $file | sed 1q)
rx_now=$(cat $file | sed '2q;d')
echo "dw: $(((tx_now-tx_prev)/1024))kB/s, up: $(((rx_now-rx_prev)/1024))kB/s"
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