Drush

During configuration imports, you can stumble upon this issue: not being able to import config because there are existing entities of type shortcut

If you are running a devOps system, you can put your sites in maintenance mode like this:

This easy snippet can help you if you want information about your current drupal version

When upgrading to Drupal 9 it can be handy to look up the uninstalled modules first, to remove them.

This drush snippet helps you to remove tags in bulk.

Drupal's default caching mechanism is to clear "all" cache. This is rather inefficiënt. There are options to clear specific caches only, here's how.