Which command would you use to list all running Docker containers?

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Using the command docker ps is the standard way to list all running Docker containers. This command retrieves information about the containers that are currently active, including their IDs, names, and the images they are based upon. By default, docker ps only displays running containers, making it focused and efficient for the user to see active instances without cluttering the output with stopped or exited containers.

The command operates by querying the Docker daemon, which maintains the state of all containers, and returns a concise list that allows users to quickly assess the current operational status of their Docker containers. This command is a fundamental part of Docker's command-line interface and crucial for managing containers effectively.

The other options provided do not correspond to valid Docker commands. They do not exist in Docker's command set, which is why they wouldn't provide any relevant output when executed.

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