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The pages on this site contain documentation for very old MS-DOS software,
purely for historical purposes.
If you're looking for up-to-date documentation, particularly for programming,
you should not rely on the information found here, as it will be woefully
out of date.
QBasic Command Line
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These options can be typed on the DOS command line following the QBasic
command:
QBASIC [/B] [/EDITOR] [/G] [/H] [/MBF] [/NOHI] [[/RUN] sourcefile]
Option Description
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/B Allows the use of a composite (monochrome) monitor with
a color graphics card. The /B option displays QBasic in
monochrome if you have a color monitor.
/EDITOR Invokes the MS-DOS Editor text editor. Can be
abbreviated as /ED.
/G Sets QBasic to update a CGA screen as fast as possible
(works only with machines using CGA monitors). If you
see snow (dots flickering on the screen) when QBasic
updates your screen, your hardware cannot fully support
this option. If you prefer a clean screen, restart
QBasic without the /G option.
/H Displays the maximum number of lines possible on your
hardware.
/MBF Causes the QBasic conversion functions (CVS, CVD, MKS$,
MKD$) to treat IEEE-format numbers as Microsoft-Binary-
format numbers.
/NOHI Allows the use of a monitor that does not support high
intensity. Not for use with Compaq laptop computers.
sourcefile Names the file to load when QBasic starts. To load a
file created with GW-BASIC or BASICA, the file must be
saved from GW-BASIC or BASICA with the ,A option.
/RUN sourcefile Causes QBasic to load and run a program file before
displaying it.