Installing
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2. Installing GRUB Customizer
Then to Install GRUB Customizer in Ubuntu
Simply play:sudo apt install grub-customizer
Authenticate with the User Admin Pass.
If Got “User is Not in Sudoers file” then Look: Solution
Contents
$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }