#!/bin/bash
#get value range
minbright=3
-maxbright=$(cat /sys/devices/platform/twl4030-pwm0-bl/backlight/twl4030-pwm0-bl/max_brightness)
-curbright=$(cat /sys/devices/platform/twl4030-pwm0-bl/backlight/twl4030-pwm0-bl/brightness)
+maxbright="$(cat /sys/devices/platform/twl4030-pwm0-bl/backlight/twl4030-pwm0-bl/max_brightness)"
+curbright="$(cat /sys/devices/platform/twl4030-pwm0-bl/backlight/twl4030-pwm0-bl/brightness)"
device=/sys/devices/platform/twl4030-pwm0-bl/backlight/twl4030-pwm0-bl/brightness
if [ ! $1 ]; then
-newbright=$(zenity --scale --text "set brightness" --min-value=$minbright --max-value=$maxbright --value=$curbright --step 1)
+newbright=$(zenity --scale --text "Set brightness" --min-value=$minbright --max-value=$maxbright --value=$curbright --step 1)
else
newbright=$1
fi