8
CLS
1
LINE INPUT "C:\>"; a$
IF MID$(a$, 2) = ":" THEN PRINT "Invalid drive": GOTO 1
IF a$ = "time" THEN PRINT TIME$: GOTO 1
IF a$ = "date" THEN PRINT DATE$: GOTO 1
IF a$ = "stop it!" THEN END
IF a$ = "" THEN GOTO 1
IF a$ = CHR$(13) THEN PRINT "hi"
IF a$ = "cls" THEN GOTO 8
IF LEFT$(a$, 3) = "cd\" THEN PRINT "Invalid directory": GOTO 1
IF LEFT$(a$, 3) = "cd " THEN PRINT "Invalid directory": GOTO 1
PRINT "Bad command or file name"
GOTO 1