Question

What is the shortcut command to remove all stopped containers?

A) docker container prune

B) docker rm -f $(docker ps -a -q)

C) docker container remove stopped

D) docker clean

Answer 1

The correct command to remove all stopped Docker containers is 'docker rm -f $(docker ps -a -q)'. Options A and D are commands that either don't exist or are not shortcuts, while C is not a valid Docker command.

Step-by-step explanation:

The shortcut command to remove all stopped containers in Docker is B) docker rm -f $(docker ps -a -q). This command forces the removal of all containers that are not currently running. The docker ps -a -q part generates a list of all containers' IDs, and docker rm -f forcefully removes them. Option A) docker container prune will remove all stopped containers but it is not considered a 'shortcut' as it is a proper command specifically designed for this purpose, and option D) docker clean does not exist as a Docker command. Option C) docker container remove stopped is also not a valid Docker command.