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create netlog if empty

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it would not run without an existing nonempty log file
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Hekuran 2020-05-30 17:27:01 +02:00 committed by GitHub
parent d8272650bd
commit daf2829167
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.local/bin/statusbar/nettraf
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@ -14,6 +14,7 @@ logfile="${XDG_CACHE_HOME:-$HOME/.cache}/netlog"
prevdata="$(cat "$logfile")"
rxcurrent="$(($(paste -d '+' /sys/class/net/[ew]*/statistics/rx_bytes)))"
[ -f "$logfile" ] || echo "0 0" > $logfile
txcurrent="$(($(paste -d '+' /sys/class/net/[^lo]*/statistics/tx_bytes)))"
printf "🔻%sKiB 🔺%sKiB\\n" \