#!/bin/sh # Module showing network traffic. Shows how much data has been received (RX) or # transmitted (TX) since the previous time this script ran. So if run every # second, gives network traffic per second. case $BLOCK_BUTTON in 1) setsid -f "$TERMINAL" -e bmon ;; 3) notify-send "歷 Network traffic module" ": Traffic received : Traffic transmitted" ;; 6) "$TERMINAL" -e "$EDITOR" "$0" ;; esac update() { sum=0 for arg; do read -r i < "$arg" sum=$(( sum + i )) done cache=/tmp/${1##*/} [ -f "$cache" ] && read -r old < "$cache" || old=0 printf %d\\n "$sum" > "$cache" printf %d\\n $(( sum - old )) } rx=$(update /sys/class/net/[ew]*/statistics/rx_bytes) tx=$(update /sys/class/net/[ew]*/statistics/tx_bytes) printf " %4sB %4sB \\n" $(numfmt --to=iec $rx $tx)