Use the Docker command line To list available commands, either run docker with no parameters or execute docker help: $ docker
  Usage: docker [OPTIONS] COMMAND [arg...]
         docker daemon [ --help | ... ]
         docker [ --help | -v | --version ]
    -H, --host=[]: The socket(s) to talk to the Docker daemon in the format of tcp://host:port/path, unix:///path/to/socket, fd://* or fd://socketfd.
  A self-sufficient runtime for Linux containers.
  ...
 Depending on your Docker system conf