   end
 
   @doc """
-  Prints the list of all loaded modules with paths to their corresponding .beam
-  files.
+  Prints the list of all loaded modules with paths to
+  their corresponding `.beam` files.
   """
   def m do
     all    = Enum.map :code.all_loaded, fn { mod, file } -> { inspect(mod), file } end

  Load the given module's beam code (and ensures any previous
  old version was properly purged before).
  """
  def l(module) do
    :code.purge(module)
    :code.load_file(module)
  end

  @doc """
  Changes the current working directory to the given path.
  """
  def cd(directory) when is_binary(directory) do
    case File.cd(expand_home(directory)) do
      :ok -> pwd
      { :error, :enoent } ->
