/Shell/Bash/Keyboard backlight not working linux

Keyboard backlight not working linux

#!/bin/bash
# Adjust the keyboard backlight level

shopt -s -o nounset

declare -i KBD_BACKLIGHT_MAX=`cat /sys/class/leds/asus\:\:kbd_backlight/max_brightness`
declare -i KBD_BACKLIGHT_LEV=`cat /sys/class/leds/asus\:\:kbd_backlight/brightness` 

# We need a parameter, etiher inc or dec
if [ $# -eq 0 ] ; then
   exit 192
fi 

case $1 in
-inc ) 
   # increasing:
   if [ ${KBD_BACKLIGHT_LEV} -lt ${KBD_BACKLIGHT_MAX}  ] ; then
      KBD_BACKLIGHT_LEV=${KBD_BACKLIGHT_LEV}+1
      echo ${KBD_BACKLIGHT_LEV} | tee /sys/class/leds/asus::kbd_backlight/brightness
   fi
   ;;
-dec )
   # decreasing:
   if [ ${KBD_BACKLIGHT_LEV} -gt 0 ] ; then
      KBD_BACKLIGHT_LEV=${KBD_BACKLIGHT_LEV}-1
      echo ${KBD_BACKLIGHT_LEV} | tee /sys/class/leds/asus::kbd_backlight/brightness
   fi
   ;;
esac

exit 192

Source: askubuntu.com

Similar codes

0 vote100 views1 answer
Fix mp3 file
Shell/Bash
2 votes97 views1 answer
Ubuntu tweak
Shell/Bash
0 vote107 views1 answer
Sed add newline
Shell/Bash
0 vote99 views1 answer
How to delete all history for specific search term in chrome
Shell/Bash
51 votes107 views6 answers
Get all branches git
Shell/Bash
22 votes101 views5 answers
Install bootstrap in angular 9
Shell/Bash
0 vote101 views2 answers
Npm install vuelidate
Shell/Bash
0 vote107 views1 answer
Unable to access : Could not resolve host: github.com
Shell/Bash
1 vote99 views1 answer
Un innstall dot net ubuntu
Shell/Bash
1 vote105 views1 answer
Number fo files prestn in gcs bucket command
Shell/Bash