What command is used to stop a running Docker container?

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The command used to stop a running Docker container is "docker stop." This command sends a SIGTERM signal to the process running inside the container, allowing it to gracefully terminate. If the process does not stop within a specified timeout period, the command will forcibly stop the container by sending a SIGKILL signal. This mechanism is essential for ensuring that any cleanup or shutdown processes within the container are completed before the container is stopped, thus preventing potential data loss or corruption.

In contrast, the other options do not exist in the Docker command set. "docker halt" and "docker terminate" are not valid commands, while "docker exit" is not applicable as it is typically associated with terminating a shell session rather than stopping a container. Therefore, "docker stop" is the only correct command to manage the stopping of a running container effectively.

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