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

How to Install Jenkins on Gnu/Linux Distros Easy Guides

Jenkins Quick Start for GNU/Linux

Hi! The linked Tutorials Show you Step-by-Step How to Install and Getting-Started Jenkins on some most diffused GNU/Linux Distributions.

And in a nutshell Jenkins CI is the leading Open-Source Continuous Integration Server.

Finally, Jenkins is Built with Java, it provides 922 plugins to support building and testing virtually any project.