Ubuntu MATE: Keyboard lighting

[Mihai]

The led keyboard file is created as follows

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[root @ debian ~] touch led_keyboard

Edit the led keyboard file and add the following lines of code

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#!/bin/bash
if [ -f /tmp/keyboard_light ]; then
xset -led 3 && rm /tmp/keyboard_light
else
xset led && touch /tmp/keyboard_light
fi

Save the file and add execute rights to the led_keyboard file

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[root @ debian ~] chmod +x led_keyboard

A keyboard shortcut is added by following the steps: System > Centrol Center > Keyboard Shortcuts > +Add
Fill in the Name field: Keyboard lighting (or whatever name you want), fill in the Command field: bash /path/to/file/led_keyboard led on
Press the Apply button and notice the added shortcut under Custom Shortcuts.
Click on Disable and add the desired key combination to execute the command.
Restart the computer and test the key combination after starting the operating system.