.Reading user input
----
echo -n "Please enter your name: "
read name
echo "Hello, $name!"
----
>>>
Document
  { docMeta =
      Meta
        { docTitle = []
        , docTitleAttributes = Nothing
        , docAuthors = []
        , docRevision = Nothing
        , docAttributes = fromList [ ( "sectids" , "" ) ]
        }
  , docBlocks =
      [ Block
          mempty
          (Just (BlockTitle [ Inline mempty (Str "Reading user input") ]))
          (Listing
             Nothing
             [ SourceLine "echo -n \"Please enter your name: \"" []
             , SourceLine "read name" []
             , SourceLine "echo \"Hello, $name!\"" []
             ])
      ]
  }