$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Update System on CentOS Gnu/Linux Distro

GNU/Linux CentOS Updating System Guide

Hi! The Tutorial shows you Step-by-Step How to Update Packages & System in CentOS GNU/Linux Desktops.

And here I explain How to Update/Upgrade CentOS easily on Command Line.

But at your choice there is also the possibility to see instead: How to Update/Upgrade System with GUI.

Finally, this Setup is Valid also for All the others Red Hat Linux Based Distros like:

Red Hat Enterprise Linux
Oracle Enterprise Linux
Rocky Linux
AlmaLinux

GNU/Linux CentOS System Update Guide

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