Administer users with Drush
Create user:
drush ucrt example_username --password="example_password" --mail="example@example.com"
Update user password:
drush upwd example_username --password="example_password"
Remove user account (and anonymise all content generated by user):
drush ucan example_username
List all user roles:
drush rls
Add role to user:
drush urol "example_role" example_username