ATTACH
     Deassigns the terminal and switches control from the current process to
     a previously created process.
  Syntax
     ATTACH [({integer | string})]
  Parameters
     integer    The process identification of the process to which terminal
                control will be switched.  Use decimal numbers.
     string     The process to which terminal control will be switched.
                Process names are case-sensitive.  Put the string in quotes.
  Example
     ATTACH ("Joyce_2");
     Switches terminal control to the process Joyce_2.
  Related topics
     CREATE_PROCESS   SEND   SEND_EOF   SPAWN