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

GNU/Linux CentOS RVM Manage Multiples Rubies Versions Guide

Installing Rubies

  1. 4. Installing Rubies

    Now to Install Rubies on CentOS
    First, to List Known Ruby Versions
    To avoid possible Issue switch to a Login Shell with:

    bash --login

    Then to List the Ready-made Versions:

    rvm list known

    But this List is Not frequently Up to date…
    So you should Browse to Check All Available Versions in: RVM Rubies Repository!
    Then for instance to Setup Ruby 3.2.0 issue:

    rvm install 3.2.0

    Especially relevant: starting with the Latest OpenSSL 3+ RVM is Not any more able to Setup Ruby 2.x Versions.

    You will need to be Patient and Wait Until Achievement of Downloading, Compiling & Installing Procedure…

  2. 5. Managing Rubies

    First, to List Installed Rubies
    Play:

    rvm list

    Then to Select/Use a Ruby Version use:

    rvm use 3.2.0

    After you Can Check that Ruby is Working with:

    which ruby

    And to know the Actual Ruby Version:

    ruby -v

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