help - Display information about a command The help command displays information about how to use a command. For example, to see a list of Swarm options and commands, enter: $ docker run swarm --help
To see a list of arguments and options for a specific Swarm command, enter: $ docker run swarm <command> --help
For example: $ docker run swarm list --help
Usage: swarm list [OPTIONS] <discovery>
List nodes in a cluster
Arguments:
<discovery> discovery service to use [$S