Most of us already familiar with the Migrate module in previous versions of Drupal and I personally have been using it for several years to perform content migrations from different CMS's into Drupal. Migrate module is now part of Drupal 8 core which supposed to make it much easier to use. Unfortunatley this is not 100% true and in order to perform content migration you have to install several additional contrib modules. As of today there is no way to run migrations through interface as it was possible in Drupal 6 or 7 (and personally I don't think you really need the UI).

In order to be able to run migrations in command line you will need to install the following modules: