Brillo-editar.sh

#!/bin/bash
#PLEASE RUN AS "ROOT" 

#se requiere correr como "root"

#editor de brillo por terminal
# Friday, October 04 2024
# 17:34
#by AlexLikeRock

#instructions
#search "brightness" inside of  /sys/class/backlight/
#examples:
#  /sys/class/backlight/acpi_video0/brightness
#  /sys/class/backlight/nv_backlight/brightness
#  /sys/class/backlight/XXXXXXXX/brightness

#2 options :
#1).- run this script as ROOT
#2).-  run this script as normal user, but you need change permissions  of the file  brightness:
#   # chmod 777 /sys/class/backlight/XXXXXXXX/brightness

#other different way :
# xrandr --output LVDS-1 --brightness 0  ## screen OFF ##
# xrandr --output LVDS-1 --brightness 0.1 # minimal #
# xrandr --output LVDS-1 --brightness 0.2
# xrandr --output LVDS-1 --brightness 0.5
# xrandr --output LVDS-1 --brightness 0.7
# xrandr --output LVDS-1 --brightness 1    #max brightness#
# xrandr --output LVDS-1 --brightness 2    # bad option #




echo "poner numero del 1 al 100"
read -r  option  

echo $option  >  /sys/class/backlight/nv_backlight/brightness
echo "se puso el brillo al "  $option  "%"
echo "listo"
exit 0