Subcommander Example

example.p6

use v6; 
use Subcommander;

my class App is Subcommander::Application {
  has $.interactive is option;

  #| Greet the user
  method greet(
    Str $name,            #= The name of the person to greet
    Str :$language = 'en' #= The language to greet them in
  ) is subcommand {
    say "Greetings, $name!";
  }
}

App.new.run(@*ARGS);

=begin output

For perl6 app help:

Usage: app [command]

  greet	Greet the user
   help	Display help to the user
version	Display the current version to the user

=end output

=begin output
For perl6 app help greet:

Usage: app greet [options] name

Greet the user

Arguments:

name	The name of the person to greet

Options:

--language	The language to greet them in
=end output