# File lib/chef/knife/core/subcommand_loader.rb, line 43
      def site_subcommands
        user_specific_files = []

        if chef_config_dir
          user_specific_files.concat Dir.glob(File.expand_path("plugins/knife/*.rb", chef_config_dir))
        end

        # finally search ~/.chef/plugins/knife/*.rb
        user_specific_files.concat Dir.glob(File.join(env['HOME'], '.chef', 'plugins', 'knife', '*.rb'))

        user_specific_files
      end