Description:

Drush is a command line shell and Unix scripting interface for Drupal. If
you are unfamiliar with shell scripting, reviewing the documentation for your
shell (e.g. man bash) or reading an online tutorial (e.g. search for "bash
tutorial") will help you get the most out of Drush.

Drush core ships with lots of useful commands for interacting with code like
modules/themes/profiles. Similarly, it runs update.php, executes sql queries
and DB migrations, and misc utilities like run cron or clear cache.

Works with Drupal 6, Drupal 7, and usually Drupal 8.

NOTE: You must manually install your required database driver
(ex: php-mysql, php-mysqli, php-pgsql)