#!/bin/bash

DEVICE=wlp2s0
COLOR1="#FF9B00"
COLOR2="#A16200"

good=0
for gooddev in `grep \: /proc/net/dev | awk -F: '{print $1}'`
do
    if [ "$DEVICE" = $gooddev ]
    then
        good=1
        break
    fi
done

if [ $good -eq 0 ]
then
    echo "0010"
    exit 1
fi

if [ ! -f $HOME/.local/tmp/.tmp_RXNET_BIT ]
then
    RXNET_BIT=0
    TXNET_BIT=0

    echo $RXNET_BIT > $HOME/.local/tmp/.tmp_RXNET_BIT
    echo $TXNET_BIT > $HOME/.local/tmp/.tmp_TXNET_BIT
fi

RXNET_BIT=$(cat $HOME/.local/tmp/.tmp_RXNET_BIT)
TXNET_BIT=$(cat $HOME/.local/tmp/.tmp_TXNET_BIT)

line=`grep $DEVICE /proc/net/dev | sed s/.*://`
rx=`echo $line | awk '{print $1}'`
tx=`echo $line | awk '{print $9}'`

inbound=$(($rx-$RXNET_BIT))
outbound=$(($tx-$TXNET_BIT))

line=`grep $DEVICE /proc/net/dev | sed s/.*://`
RXNET_BIT=`echo $line | awk '{print $1}'`
TXNET_BIT=`echo $line | awk '{print $9}'`

echo $RXNET_BIT > $HOME/.local/tmp/.tmp_RXNET_BIT
echo $TXNET_BIT > $HOME/.local/tmp/.tmp_TXNET_BIT

inb=$(printf "%.0f MB/s" $(echo "scale=2; $inbound / 1024 / 1024" | bc))

outb=$(printf "%.0f MB/s" $(echo "scale=2; $outbound / 1024 / 1024" | bc))

echo "^c$COLOR1^^b$COLOR2^ $inb ^b$COLOR1^^c$COLOR2^  ^c$COLOR1^^b$COLOR2^ $outb ^d^"