The CTTY command changes the standard input and output console to another
device, or restores the system screen and keyboard as the console.  The
command format is as follows:

         CTTY device_name

The concept of standard input and output devices, as well as the devices
that are normally available in the system are described in the help files
REDIRECT and DEVICES.  The primary console may be switched to AUX for example
to make the first asynchronous communication port the console.  When the
console is to be switched back to the normal console (keyboard and screen),
the command is entered as CTTY CON.

The CTTY command is only effective for commands that use DOS function calls
to communicate with the standard input and output devices.  Programs that
do not use these functions (for example BASIC !!) will still use the screen
and keyboard regardless of the CTTY assignment.

The CTTY command will accept the name of any character oriented device
including custom ones installed in your system.  You must be careful to
specify a device that is capable of both input and output operations (do not
use a read only device such as the printer PRN !).
d.
Examples of copying with the same name:
COPY A:THISFILE  - This copies the file THISFILE fr