# rabbitmqctl-users > Manage RabbitMQ users, their permissions, and tags. > More information: . - List all users: `rabbitmqctl list_users` - Add a new user with a password: `rabbitmqctl add_user {{username}} {{password}}` - Delete an existing user: `rabbitmqctl delete_user {{username}}` - Change the password for a user: `rabbitmqctl change_password {{username}} {{new_password}}` - Set permissions for a user on a specific virtual host: `rabbitmqctl set_permissions {{[-p|--vhost]}} {{vhost}} {{username}} {{read}} {{write}} {{configure}}` - Clear all permissions for a user on a specific virtual host: `rabbitmqctl clear_permissions {{[-p|--vhost]}} {{vhost}} {{username}}` - Assign one or more tags (e.g., administrator) to a user: `rabbitmqctl set_user_tags {{username}} {{tag1}} [{{tag2}}]`