What is the difference between CMD and ENTRYPOINT in a Dockerfile?

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• Docker has a default entrypoint which is /bin/sh -c but does not have a default command.

• When you run docker like this: docker run -i -t ubuntu bash the entrypoint is the default /bin/sh -c, the image is ubuntu and the command is bash

• the ENTRYPOINT specifies a command that will always be executed when the container starts.

• The CMD specifies arguments that will be fed to the ENTRYPOINT