Drush is a command line shell and scripting interface for Drupal that allows users to perform tasks like clearing caches, running cron, updating Drupal core, and downloading modules without accessing the site directly. It is useful for developers, site builders, and content managers as it speeds up common operations and makes tasks more consistent. The document provides examples of common Drush commands and explains how to install, use, and extend Drush functionality.

1. Drush
Command Line Drupal
Andrew Riley
February, 2010

2. What is Drush?

3. Drupal Shell
Yes, it allows you to manipulate Drupal
without ever having to go into Drupal.
Shh, it works in windows too.

4. Who should use it?

5. Developers
Module Developers
Theme Developers
Site Developers
People who don’t call themselves developers*

6. Ongoing
Deployment
Developers

7. Content Managers
Don’t need Drush
They can use normal Drupal
They will be envious

8. Why use it?

9. 1
Speed
Normal: 5 Steps
Drush: 2 Steps
200 Steps?

10. 2
Consistancy
Things are better
when humans aren’t
involved.

11. Should you add modules in :
/sites/all/modules (Possible)
/sites/default/modules (Possible)
/modules (HECK NO)

12. 3 It’s scriptable

13. #!/usr/bin/sh
rm ~/update_backup.sql.gz
drush sql dump | gzip > ~/
update_backup.sql.gz
drush update
drush cc

14. How to use it

15. Installing is easy -
follow the directions

16. Increase your memory_limit
in php.ini

17. HELP ME!!!!
drush help

18. Downloading
drush download {modulename}
or
drush dl {modulename}
Example: drush download webform

19. Clear Cache
drush cache clear
or
drush cc

20. Run Cron
drush cron

21. Updating Drupal
drush update
Updates your code base and runs the
database update.

22. Backup your DB
drush sql dump
or
drush sql dump | gzip > ~/update_backup.sql.gz

23. Restore your DB
drush sql load

24. Variable Set/Get
drush variable get {name}
drush variable set {name} {value}

25. Extending Drush
Modules can expand it (xmlsitemap2,
sitedir_migrate, backup_migrate)
There are modules that only work with
Drush (Drush Make, etc)

26. Questions?
Andrew Riley
@andrewmriley
Associate Director of Software Development
Mindcomet