The PROMPT command lets you specify what you want the DOS prompt to look
like.  The command syntax is as follows:

          PROMPT [prompt-text]

All the prompt-text specified is used by DOS as the new prompt.  If no
parameter is specified the normal DOS prompt is assumed.  Special system
known values may be specified for the prompt by embedding a "$c" in the text.

The value of "c" may be one of the following:
$  - The "$" character
g  - The ">" greater than character
l  - The "<" less than character
b  - The "|" OR bar character
q  - The "=" equal sign character
h  - The backspace and erasure of the previous character
e  - The Escape character
_  - The cursor is moved to the start of the next line (for multi-line prompts)
t  - The current time
d  - The current date
n  - The default drive letter
p  - The current directory of the default drive
v  - The DOS version number
The following examples help illustrate the command's uses:

PROMPT $p$g   - This displays the current disk drive, the default directory
                and the greater than symbol.  For example "A:\MYDIR>".

PROMPT TIME $q $t $b  - This displays the current time after a string "TIME"
                        in the format  "TIME = hh:mm:ss.ff |".  This can be
                        useful for checking how long a program takes to run
                        by checking the difference between the times of the
                        two DOS prompts.
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