How can you remove all stopped containers and unused networks in Docker?

Deleting all stopped containers and unused networks in Docker is a routine cleanup task that helps maintain the Docker environment's organization and efficiently manage resource utilization. To execute these operations, utilize Docker's command-line tools. First, to remove all stopped containers, use the docker container prune command. This command deletes all containers in a stopped state. Before running this command, it is advisable to use docker ps -a to check the status of all containers and identify which are stopped. For example: bash # View the status of all containers docker ps -a # Delete all stopped containers docker container prune When prompted for confirmation, type y to confirm the deletion. This will clear all stopped containers. Next, for unused networks, Docker provides the docker network prune command to delete all networks not utilized by any container. Before running this command, use docker network ls to view existing networks, which helps identify unused resources. For example: bash # View all networks docker network ls # Delete all unused networks docker network prune When prompted for confirmation, enter y to confirm the deletion. This will remove all unused network resources. By following these steps, you can effectively manage your Docker environment, preventing unnecessary resource consumption. This enhances system efficiency and helps avoid issues stemming from resource constraints. In practical scenarios, these maintenance tasks are essential, particularly in environments with high resource usage.