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Exec vs Attach Commands

(Dan Jones) #1

I conceptually understand the difference between docker exec and docker attach. But what are the practical differences for when to use exec and when to use attach? It seems I can make each behave like the other.

(Ranjandas) #2


Docker attach attaches to the process that runs in the container with PID 1. Where as Docker exec is used run a new process inside the container. Docker exec also gives you the feature to run the process as a different user and various other features.