How to set up your user account to Hibernate on critical battery level in Ubuntu

In this post I will show how to hibernate Ubuntu on critical battery level.
In the previous posts I had shown How to...

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Set critical battery percentage using the command in terminal

gsettings get org.gnome.settings-daemon.plugins.power percentage-critical

To modify this value, set to 20% by using the below command in the terminal

gsettings get org.gnome.settings-daemon.plugins.power percentage-critical 20