68 lines
1.7 KiB
Text
68 lines
1.7 KiB
Text
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#!/bin/bash
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INTERVAL=3
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INTERFACES="enp6s0 wlp0s29u1u1"
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print_bytes() {
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if [ "$1" -eq 0 ] || [ "$1" -lt 1000 ]; then
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bytes="0"
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elif [ "$1" -lt 1000000 ]; then
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bytes="$(echo "scale=0;$1/1000" | bc -l)k"
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else
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bytes="$(echo "scale=1;$1/1000000" | bc -l)M"
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fi
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echo "$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 "scale=0;$1*8" | bc -l) B"
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elif [ "$1" -lt 100000 ]; then
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bit="$(echo "scale=0;$1*8/1000" | bc -l) K"
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else
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bit="$(echo "scale=1;$1*8/1000000" | bc -l) M"
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fi
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echo "$bit"
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}
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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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if [ "$down" -gt 1000 ] || [ "$up" -gt 1000 ]; then
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echo " $(print_bytes $down) 祝$(print_bytes $up)"
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else
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echo ""
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fi
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# echo "Download: $(print_bytes $down) / Upload: $(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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