Awesome battery widget updater

awesome_battery_widget.sh

#!/bin/bash

while true ; do
	state=`acpi -b`
	percentage=`echo $state | grep -oP '\d+(?=%)'`

	color='green'
	echo $state | grep 'Discharging' && [[ $percentage -lt 15 ]] && color='red'
	echo $state | grep 'Discharging' && [[ $percentage -gt 15 ]] && color='yellow'

	text="<span foreground=\"$color\">$state</span>"
	echo "bat_text:set_markup('$text')" | awesome-client
	sleep 10
done