How do you know which command to copy and paste? Unless you're suggesting to just try them randomly until you get one that seems to do what you want.

There are plenty of commands where the documentation is nearly impenetrable (e.g. ffmpeg, or if it exists at all), but I think GP's point was that for docker it's fairly simple.

IMO except for the concrete examples for docker run/exec, this website looks more or less exactly like the CLI help output for docker.