As a note to self, I learned today that you can install Drupal 7 modules from the command line with this Drush command:
drush en module_name
drush en smtp
You can also update Drupal 7 modules with Drush. For instance, I just ran these commands on a Drupal 7 website:
drush up ctools drush up context drush up file_entity drush up media drush up rules
The process of updating a Drupal 8 website has changed dramatically recently (March-April, 2018), so I deleted the older content on this page and replaced it with the content below.
As of April, 2018 you now need to use Composer along with Drush to update your website. Here are my very brief notes on how to do this:
This drupal.org page shows how to update Drupal 8 using drush and other techniques.
After being away from Drupal work for a long time, I just got back into it, and right away ran into a problem with Drupal 8 where, after migrating a Drupal 6 site to Drupal 8, I was unable to log into the new Drupal 8 website. I have no idea what the migration process set my user password to, but it wasn’t any of the ones I used on the old Drupal 6 website or on the new Drupal 8 website — probably because the migration process zapped my Drupal User 1 account.
Long story short, instead of using drush, I decided to use the Drupal Console project to reset the password, and it worked as advertised. After installing the Console project, just type
drupal list | grep password to see the command to reset the password, and then use it. At the time of this writing the command is
drupal user:password:reset. I have no idea if that will change in the future, but for now you can type that command and then respond to the prompts. You’ll need the User ID for the account that you want to modify, and you can get that by looking at the Drupal 8