Get help for client commands

To get usage information, including a list of commands with descriptions, for a client, run the following command:

$ CLIENT_NAME help

For example, to get help information for the swift client, run the following command:

$ swift help

Usage: swift [--version] [--help] [--snet] [--verbose]
             [--debug] [--quiet] [--auth <auth_url>]
             [--auth-version <auth_version>] [--user <username>]
             [--key <api_key>] [--retries <num_retries>]
             [--os-username <auth-user-name>] [--os-password <auth-password>]
             [--os-tenant-id <auth-tenant-id>]
             [--os-tenant-name <auth-tenant-name>]
             [--os-auth-url <auth-url>] [--os-auth-token <auth-token>]
             [--os-storage-url <storage-url>] [--os-region-name <region-name>]
             [--os-service-type <service-type>]
             [--os-endpoint-type <endpoint-type>]
             [--os-cacert <ca-certificate>] [--insecure]
             [--no-ssl-compression]
             <subcommand> ...

Command-line interface to the OpenStack Swift API.

Positional arguments:
  <subcommand>
    delete               Delete a container or objects within a container
    downlad              Download objects from containers
    list                 Lists the containers for the account or the objects
                         for a container
    post                 Updates meta information for the account, container,
                         or object
    stat                 Displays information for the account, container,
                         or object
    upload               Uploads files or directories to the given container

Examples:
  swift -A https://auth.api.rackspacecloud.com/v1.0 -U user -K api_key stat -v

  swift --os-auth-url https://api.example.com/v2.0 --os-tenant-name tenant \
      --os-username user --os-password password list

  swift --os-auth-token 6ee5eb33efad4e45ab46806eac010566 \
      --os-storage-url https://10.1.5.2:8080/v1/AUTH_ced809b6a4baea7aeab61a \
      list

  swift list --lh

	Note
	Depending on your credentials, you might not have permission to use every command.

After the help command, you can enter a command name to get help for that command, as follows:

$ CLIENT_NAME help COMMAND_NAME

For example, to get help for the glance image-show command, enter the following command:

$ glance help image-show

The command returns a description of the command and its positional and optional arguments:

usage: glance image-show [--human-readable] <IMAGE>

Describe a specific image.

Positional arguments:
  <IMAGE>           Name or ID of image to describe.

Optional arguments:
  --human-readable  Print image size in a human-friendly format.