D Current date $P Current drive and path $V MS-DOS version number $N Current drive $G * (greater-than sign) $L * (less-than sign) $B | (pipe) $H Backspace (erases previous character) $E Escape code (ASCII code 27) $_ Carriage return and linefeedType PROMPT without parameters to reset the prompt to the default setting. **************************************************************** RD COMMAND ONLINE DOCUMENTATION **************************************************************** Removes (deletes) a directory.RMDIR [drive:]pathRD [drive:]path **************************************************************** REM COMMAND ONLINE DOCUMENTATION **************************************************************** Records comments (remarks) in a batch file or CONFIG.SYS.REM [comment] **************************************************************** REN COMMAND ONLINE DOCUMENTATION **************************************************************** Renames a file or files.RENAME [drive:][path]filename1 filename2REN [drive:][path]filename1 filename2Note that you cannot specify a new drive or path for your destination file.Use MOVE to rename a directory, or to move files from one directory to another. **************************************************************** SCANDISK COMMAND ONLINE DOCUMENTATION **************************************************************** Runs the ScanDisk disk-repair program.To check and repair a drive, use the following syntax: SCANDISK [drive: | /ALL] [/CHECKONLY | /AUTOFIX [/NOSAVE]] [/SURFACE]To check and repair an unmounted DriveSpace compressed volume file, use: SCANDISK drive:DRVSPACE.nnn [/CHECKONLY | /AUTOFIX[/NOSAVE]]To examine a file for fragmentation, use the following syntax: SCANDISK /FRAGMENT [drive:][path]filenameTo undo repairs you made previously, use the following syntax: SCANDISK /UNDO [drive:]For [drive:], specify the drive containin...