dwmbar/modules/networkuptraffic

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#!/bin/bash
# Prints out the current up network traffic in MB
PREFIX=' '
get_up_traffic()
{
DELTA=2
TRANSMIT1=0
TRANSMIT2=0
IFACES=$(ip -o link show | awk -F': ' '{print $2}')
for IFACE in $IFACES; do
if [ $IFACE != "lo" ]; then
TRANSMIT1=$(($(ip -s -c link show wlan0 | tail -n1 | cut -d " " -f5) + TRANSMIT1))
fi
done
sleep $DELTA
IFACES=$(ip -o link show | awk -F': ' '{print $2}')
for IFACE in $IFACES; do
if [ $IFACE != "lo" ]; then
TRANSMIT2=$(($(ip -s -c link show wlan0 | tail -n1 | cut -d " " -f5) + TRANSMIT2))
fi
done
echo "$PREFIX$(expr $(expr $TRANSMIT2 - $TRANSMIT1) / 1000000)MB"
}
get_up_traffic