What is the purpose of the Docker command 'docker exec'?

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The command 'docker exec' is specifically designed to execute a command within a running container. This functionality allows users to interact with the container's environment, making it possible to run commands, troubleshoot issues, or manage processes inside the container directly. For instance, if you want to get a shell prompt inside an active container to inspect its filesystem, or run additional commands without starting a whole new container instance, 'docker exec' is the appropriate tool for the job.

This command is particularly useful for scenarios where you need to check logs, modify configurations, or install packages in an already running container without interrupting its operation. It provides a seamless way to interact with a container's environment while it continues to serve its intended purpose.

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