If you are into Drupal development and a vivid user of GNU/ Linux (or *nix) for a while, then Drush is a must learn tool for you. As a part of Drupal development project, we extensively use drush. A few commands that help us develop sites at the phase of clients expectation are briefed below,
1. drush cc [type] :- Clears a specific cache, or all Drupal caches.
$ drush cc all