1. Use the role-create command to create a new role labeled staff:

$ drush role-create staff
 Created "staff" 

2. Use the role-lists command to verify that the role was created in Drupal:

$ drush role-list
ID Role Label 
anonymous Anonymous user 
authenticated Authenticated user 
administrator Administrator 
staff Staff

3. The user-create command will create our user:

$ drush user-create staffmember
User ID : 2 
User name : staffmember 
User roles : authenticated 
User status : 1 

4. In order to add the role, we will need to use the user-add-role command:

$ drush user-add-role staff staffmember
Added role staff role to staffmember

5. We will now log in as the staffmember user using the user-login command:

$ drush user-login staffmember --uri=http://example.com
http://example.com/user/reset/2/1452810532/Ia1nJvbr2UQ3Pi_QnmITlVgcCWzDtnKmHxf-I2eAqPE

6. Copy the link and paste it in your browser to log in as that user: