Changes the program's command prompt.

PROMPT [text]

  text	Specifies a new command prompt.

Prompt can be made up of normal characters and the following special codes:

  $A	& (Ampersand)
  $B	| (pipe)
  $C	( (Left parenthesis)
  $D	Current date
  $E	Escape code (ASCII code 27)
  $F	) (Right parenthesis)
  $G	> (greater-than sign)
  $H	Backspace (erases previous character)
  $L	< (less-than sign)
  $N	Current drive
  $P	Current drive and path
  $Q	= (equal sign)
  $S	  (space)
  $T	Current time
  $V	System's version number
  $_	Carriage return and linefeed
  $$	$ (dollar sign)

If Command Extensions are enabled the PROMPT command supports
the following additional formatting characters:

  $+	zero or more plus sign (+) characters depending upon the
	depth of the PUSHD directory stack, one character for each
	level pushed.

  $M	Displays the remote name associated with the current drive
	letter or the empty string if current drive is not a network
	drive.
