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

How to Create RAR File on Mint Gnu/Linux Distro

GNU/Linux Mint Making RAR File Guide

How to Install RAR and Get Started to Create RAR Archives on Mint GNU/Linux desktops – Step by step Tutorials.

And to make RAR Files on Mint you have to setup the RAR Archiver CLI Tool.

How to Create RAR File on Mint GNU/Linux - Featured

GNU/Linux Mint Creating RAR Archive Guide