# File lib/guard/commands/change.rb, line 17
        def process(*entries)
          scopes, files = ::Guard::Interactor.convert_scope(entries)

          if files.empty?
            output.puts 'Please specify a file.'
          else
            ::Guard.within_preserved_state do
              ::Guard.runner.run_on_changes(files, [], [])
            end
          end
        end