Drush - Useful commands
Drush is a command line shell and Unix scripting interface for Drupal. You can use drush to download, update and install drupal and it's modules. It also executes SQL queries and DB migrations, clear caches and other useful things such as backup, updates, clear caches etc.
The most common commands are:
Display a list of available options and commands
drush dl project-name
Downloads the project we want, sush as module, theme or drupal.
drush en project-name
Enable the module or theme.
drush up project-name
Updates the module, theme or drupal
Display recent logs, errors and warnings
The full list of commands can be found at https://drushcommands.com