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# network activity
[ ! -f /tmp/netactup ] || touch /tmp/netactup
[ ! -f /tmp/netactdown ] || touch /tmp/netactdown
# get previous results
rx_prev=$(cat /tmp/netactdown)
tx_prev=$(cat /tmp/netactup)
# convert results to integers
rx_prev=$(($rx_prev))
tx_prev=$(($tx_prev))
# set variables to sys files
rx_now=$(cat /sys/class/net/enp60s0/statistics/rx_bytes)
tx_now=$(cat /sys/class/net/enp60s0/statistics/tx_bytes)
# convert variables to integers
rx_now=$(($rx_now))
tx_now=$(($tx_now))
# caculate amount send and recieved
down_total=$((rx_now - rx_prev))
up_total=$((tx_now - tx_prev))
echo $rx_now > /tmp/netactdown
echo $tx_now > /tmp/netactup
echo "D:" $(numfmt --to=iec $down_total) "U:" $(numfmt --to=iec $up_total)
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