Low Battery Alert

batcheck.sh

#!/bin/bash
#
# TO BE RUN EACH 5 MINUTES
#

BATTERY="/sys/class/power_supply/BAT0"
CRITICAL=10
ICON="battery-caution"
NOT_CHARGING="Discharging"

battery_status=$(cat "$BATTERY/status")
battery_level=$(echo "define trunc(x){auto s;s=scale;scale=0;x=x/1;scale=s;return x};trunc($(cat "$BATTERY/charge_now")/$(cat "$BATTERY/charge_full")*100)" | bc -l)

export DISPLAY=:1.0
if [ -r "$HOME/.dbus/Xdbus" ]; then
    . "$HOME/.dbus/Xdbus"
fi

if [ $battery_level -le $CRITICAL -a $battery_status = $NOT_CHARGING ]
then
    echo "Battery low"
    /usr/bin/notify-send -u critical -i $ICON -t 10000 "Battery is low" "Only ${battery_level}% remaining!"
    /usr/bin/paplay "$HOME/.local/share/sounds/ui/LowBattery.ogg"
else
    echo "Battery not low"
fi

init_dbus.sh

#!/bin/bash
#
# TO BE RUN AT LOGIN
#

mkdir -p $HOME/.dbus
chmod 755 $HOME/.dbus
touch $HOME/.dbus/Xdbus
chmod 600 $HOME/.dbus/Xdbus
env | grep DBUS_SESSION_BUS_ADDRESS > $HOME/.dbus/Xdbus
env | grep XAUTHORITY>> $HOME/.dbus/Xdbus
env | grep XDG_RUNTIME_DIR>> $HOME/.dbus/Xdbus
echo 'export DBUS_SESSION_BUS_ADDRESS' >> $HOME/.dbus/Xdbus
echo 'export XAUTHORITY' >> $HOME/.dbus/Xdbus
echo 'export XDG_RUNTIME_DIR' >> $HOME/.dbus/Xdbus

exit 0