/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 vote249 views1 answer
Screen painting ubuntu
Shell/Bash
0 vote270 views1 answer
Run docker without iptables
Shell/Bash
1 vote225 views1 answer
Copy scp
Shell/Bash
0 vote272 views1 answer
Openssl new certificate one line
Shell/Bash
5 votes248 views2 answers
Windows 10 create sleep shortcut
Shell/Bash
0 vote259 views1 answer
Who is affected by meningitis
Shell/Bash
1 vote256 views1 answer
Terminal zip
Shell/Bash
2 votes261 views1 answer
Get file properties linux
Shell/Bash
0 vote251 views1 answer
Grep third match
Shell/Bash
0 vote254 views1 answer
Jenkins can't use aws-cli key. Unable to locate credentials for AWS CLI
Shell/Bash