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#!/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 "$BLOCK_BUTTON" in
3) notify-send "🌐 Network traffic module" "🔻: Traffic received
🔺: Traffic transmitted" ;;
6) "$TERMINAL" -e "$EDITOR" "$0" ;;
esac
rxfile="${XDG_CACHE_HOME:-$HOME/.cache}/rxlog"
txfile="${XDG_CACHE_HOME:-$HOME/.cache}/txlog"
rxcurrent="$(cat /sys/class/net/*/statistics/rx_bytes | tr '\n' '+' | sed 's/+$/\n/' | bc)"
txcurrent="$(cat /sys/class/net/*/statistics/tx_bytes | tr '\n' '+' | sed 's/+$/\n/' | bc)"
printf "🔻%skB 🔺%skB\\n" \
"$(printf -- "(%s-%s)/1024\\n" "$rxcurrent" "$(cat "$rxfile")" | bc)" \
"$(printf -- "(%s-%s)/1024\\n" "$txcurrent" "$(cat "$txfile")" | bc)"
# Log the current values for next run.
echo "$rxcurrent" > "$rxfile"
echo "$txcurrent" > "$txfile"
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