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Introduction to Drush
Drush, short for Drupal shell, is a command-line shell and scripting interface for Drupal. Using Drush, developers can manage and maintain their Drupal websites from the server command line.
Drush makes website development easier by bypassing all of web services, allowing you to make direct updates to the code and database. It can even directly download and install software and modules for you, so that you don't have to do it yourself.
Drush has developed alongside Drupal, and there are several different available versions of Drush, just as there are versions of Drupal.
Visit drush.org to verify Drupal version compatibility.
As an example of the power of Drush, let's say that you want to use Views with your Drupal 7 website. If you were doing this manually, you'd download the Views module from drupal.org (be sure to also download the Chaos tool suite module, as it's required by Views) making sure that you extract the files in the correct directory, sign in to the website, and then go to the Modules page to enable the modules.
With Drush, you simply have to execute the following command from a command-line prompt to make Views available on your website:
drush dl en viewsAs it enables the Views module, Drush determines that Views requires the Chaos Tools Suite module, so it downloads and enables that module as well.
If your website's hosting environment already includes Drush, it's ready for your use.
The Acquia Help Center contains several documentation pages and articles that use Drush for website maintenance, including the following pages:
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