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#!/bin/sh
dbus_send() {
label=$1
dbus-send --print-reply=literal --system \
--dest=org.freedesktop.UPower \
/org/freedesktop/UPower/devices/battery_BAT0 \
org.freedesktop.DBus.Properties.Get \
string:org.freedesktop.UPower.Device \
string:"${label}" | awk '{print $3}'
}
perc=$(dbus_send 'Percentage')
state=$(dbus_send 'State')
if [ "$state" -eq 2 ]; then # Discharging
secs=$(dbus_send 'TimeToEmpty')
elif [ "$state" -eq 1 ]; then # Charging
secs=$(dbus_send 'TimeToFull')
fi
printf '%s%%%%%2dh%02dm \n' "$perc" $((secs / 3600)) $((secs % 3600 / 60))
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