dotfiles/.local/bin/statusbar/nettraf
Alexander Bocken e7db5a5ee3
Various changes
modified:   .config/aliasrc
	modified:   .config/coc/history.json
	modified:   .config/gtk-2.0/gtkfilechooser.ini
	modified:   .config/nvim/init.vim
	modified:   .config/qutebrowser/autoconfig.yml
	modified:   .config/qutebrowser/bookmarks/urls
	modified:   .config/qutebrowser/qsettings/QtProject.conf
	modified:   .config/qutebrowser/quickmarks
	modified:   .config/xprofile
	modified:   .config/zsh/.zshrc
	modified:   .local/bin/bt
	modified:   .local/bin/statusbar/getpomminutes
	modified:   .local/bin/statusbar/getpomminutesft
	modified:   .local/bin/statusbar/nettraf
2020-10-02 15:33:33 +02:00

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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.
lasttime=${XDG_CACHE_HOME:-$HOME/.cache}/nettraf_time
update() {
sum=0
for arg; do
read -r i < "$arg"
sum=$(( sum + i ))
done
cache=${XDG_CACHE_HOME:-$HOME/.cache}/${1##*/}
[ -f "$cache" ] && read -r old < "$cache" || old=0
printf %d\\n "$sum" > "$cache"
printf %d\\n $(( sum - old ))
}
[ -f "$lasttime" ] && read -r previoustime < "$lasttime" || previoustime=0
rx=$(update /sys/class/net/[ew]*/statistics/rx_bytes)
tx=$(update /sys/class/net/[ew]*/statistics/tx_bytes)
timedifference=$(( "$(date +'%s')" - "$previoustime" ))
if [ "$timedifference" -gt 0 ]; then
rx_avg=$(( "$rx" / "$timedifference" ))
tx_avg=$(( "$tx" / "$timedifference" ))
else
rx_avg=$rx
tx_avg=$tx
fi
printf '⬇%s ⬆%s\n' $(numfmt --to=iec $rx_avg) $(numfmt --to=iec $tx_avg)
date +'%s' > "$lasttime"