#!/bin/bash
# low battery in %
LOW_BATTERY=»40″
# critical battery in % (execute action)
CRITICAL_BATTERY=»5″
# action
ACTION=»/sbin/poweroff»
# sleep 5 mins
SLEEP=»300″
# display icon
LOWBAT_ICON=»/usr/share/icons/gnome/32×32/status/battery-low.png»
CRITBAT_ICON=»/usr/share/icons/gnome/32×32/status/battery-caution.png»
FULLBAT_ICON=»/usr/share/icons/gnome/32×32/status/battery-full-charged.png»
# path to battery /sys
BATTERY_PATH=»/sys/class/power_supply/BAT0/»
# notify sound
PLAY=»aplay /usr/share/sounds/linuxmint-gdm.wav»
while [ true ]; do
if [ -e «$BATTERY_PATH» ]; then
BATTERY_ON=$(cat $BATTERY_PATH/status)
CURRENT_BATTERY=$(cat $BATTERY_PATH/capacity)
if [ «$BATTERY_ON» == «Discharging» ]; then
if [ «$CURRENT_BATTERY» -lt «$CRITICAL_BATTERY» ]; then
$($PLAY)
notify-send -i «$CRITBAT_ICON» «Battery is Critical – $CURRENT_BATTERY%. Shutting down in 60 sec.»
sleep 60
$($ACTION)
elif [ «$CURRENT_BATTERY» -lt «$LOW_BATTERY» ]; then
$($PLAY)
notify-send -i «$LOWBAT_ICON» «Battery is Low – $CURRENT_BATTERY%.»
fi
elif [ «$BATTERY_ON» == «Full» ]; then
$($PLAY)
notify-send -i «$FULLBAT_ICON» «Battery is Full – 100%.»
fi
fi
sleep $SLEEP
done
