help - Display information about a command
Estimated reading time: 1 minuteThe 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 [$SWARM_DISCOVERY]
* token://<token>
* consul://<ip>/<path>
* etcd://<ip1>,<ip2>/<path>
* file://path/to/file
* zk://<ip1>,<ip2>/<path>
* [nodes://]<ip1>,<ip2>
Options:
--timeout "10s" timeout period
--discovery-opt [--discovery-opt option --discovery-opt option] discovery options