command (optional) Show information about a command.
listcategories (optional) List all available command categories.
category (optional) List commands from the specified categories.
full (optional) Show detailed information on all commands or commands from the specified category.
Examples:
AppServerClientCLI help
AppServerClientCLI help listconnections
AppServerClientCLI help -full
AppServerClientCLI help -listcategories
AppServerClientCLI help -category Diagnostics
AppServerClientCLI help -category Diagnostics -full