drush role commands
Drush role commands for Drush 6.
Grant a specified permission to a role.
Create a new role.
Delete a role.
Display a list of all roles defined on the system. If a role name is provided as an argument, then all of the permissions of that role will be listed. If a permission name is provided as an option, then all of the roles that have been granted that permission will be listed.
Remove a specified permission from a role.