59 lines
1.7 KiB
Bash
59 lines
1.7 KiB
Bash
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#!/bin/bash
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print_bytes() {
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if [ "$1" -eq 0 ] || [ "$1" -lt 1000 ]; then
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bytes="0 kB/s"
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elif [ "$1" -lt 1000000 ]; then
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bytes="$(echo "$1/1000" | bc -l | LANG=C xargs printf "%.f\n") kB/s"
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fi
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echo "$bytes"
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}
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print_bit() {
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if [ "$1" -eq 0 ] || [ "$1" -lt 10 ]; then
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bit="0 B"
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elif [ "$1" -lt 100 ]; then
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bit="$(echo "$1*8" | bc -l | LANG=C xargs printf "%.f\n") B"
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elif [ "$1" -lt 100000 ]; then
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bit="$(echo "$1*8/1000" | bc -l | LANG=C xargs printf "%.f\n") K"
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else
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bit="$(echo "$1*8/1000000" | bc -l | LANG=C xargs printf "%.1f\n") M"
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fi
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echo "$bit"
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}
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INTERVAL=1
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INTERFACES="enp0s31f6 wlp3s0"
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declare -A bytes
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for interface in $INTERFACES; do
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bytes[past_rx_$interface]="$(cat /sys/class/net/"$interface"/statistics/rx_bytes)"
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bytes[past_tx_$interface]="$(cat /sys/class/net/"$interface"/statistics/tx_bytes)"
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done
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while true; do
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down=0
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up=0
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for interface in $INTERFACES; do
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bytes[now_rx_$interface]="$(cat /sys/class/net/"$interface"/statistics/rx_bytes)"
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bytes[now_tx_$interface]="$(cat /sys/class/net/"$interface"/statistics/tx_bytes)"
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bytes_down=$((((${bytes[now_rx_$interface]} - ${bytes[past_rx_$interface]})) / INTERVAL))
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bytes_up=$((((${bytes[now_tx_$interface]} - ${bytes[past_tx_$interface]})) / INTERVAL))
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down=$(((( "$down" + "$bytes_down" ))))
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up=$(((( "$up" + "$bytes_up" ))))
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bytes[past_rx_$interface]=${bytes[now_rx_$interface]}
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bytes[past_tx_$interface]=${bytes[now_tx_$interface]}
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done
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echo "ﯱ : $(print_bytes $down) / ﯱ : $(print_bytes $up) "
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# echo "Download: $(print_bit $down) / Upload: $(print_bit $up)"
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sleep $INTERVAL
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done
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