This post was last updated on March 10, 2026
Drush was (at least from my experience in 2011) not that well documented. The commands seem to change slightly with every version
I did figure out how to download themes with drush.
sudo drush dl sky
downloaded the sky theme
But I couldn’t figure out how to switch to that theme using drush so I just switched to the new theme via Appearance in the Drupal admin.