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OS 386 Multiuser/Multitasking Operating System OS 386 Multiuser/Multitasking Operating System REFERENCE GUIDE [Q] DIGITAL RESEARCH@ os REFERENCE GUIDE [jill DIGITAL RESEARCH~ COPYRIGHT Copyright © 1987 Digital Research Inc. All rights reserved. No part of this publication may be reproduced, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise without the prior written permission of Digital Research Inc, 60 Garden Court, Box DRI, Monterey, California 93942 DISCLAIMER DIGITAL RESEARCH MAKES NO REPRESENTATIONS OR WARRANTIES WITH RESPECT TO THE CONTENTS HEREOF AND SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. Further Digital Research Inc. reserves the right to revise this publication and to make changes from time to time in the content hereof without obligation of Digital Research Inc to notify any person of such revision or changes. NOTICE TO USER This manual should not be construed as any representation or warranty with respect to the software named herein. Occasionally changes or variations exist in the software that are not reflected in the manual. Generally, if such changes or variations are known to exist and to affect the product significantly, a release note or READ.ME file accompanies the manual and the distribution disks. In that event, be sure to read the release note or READ.ME file before using the product. ii TRADEMARKS Digital Research and its logo, CP/M, and CP/M-86 are registered trademarks of Digital Research Inc. Cardfile, Concurrent, Concurrent DOS 386, Concurrent DOS XM, DR EDIX, DOS Plus and MP/M-86 are trademarks of Digital Research Inc. "We Make Computers Work" is a service mark of Digital Research Inc. All rights reserved The following are registered trademarks of the listed companies. Registered Trademark Company AST AST Research Inc. IBM International Business Machines IBM PC International Business Machines IBM PC/XT International Business Machines Intel Intel Corporation Lotus Lotus Corporation Microsoft Microsoft Corporation Quadram Ouadram Corporation The following are trademarks of the listed companies. Trademark Company MS-DOS Microsoft Corporation Quadems+ Ouadram Corporation RAMpage AST Research Inc. First Edition, November 1987 iii Foreword This manual, referred to as the Concurrent Reference Guide, is for users of the Concurrent DOS 386 or Concurrent DOS XM operating systems. In this guide, DOS refers to either PC DOS or MS-DOS™. The manual contains reference information about Concurrent DOS commands and should be used with the Concurrent DOS User's Guide, hereafter referred to as User's Guide. In this Manual This manual contains detailed descriptions of the Concurrent DOS commands. See the User's Guide for operating system details. Examples use bol dface type to represent information that you type into your computer, and ordinary un it -spaced type to represent information that your computer displays on the screen. The figures in this manual might vary from the screen you see on your video display. Digital Research is interested in your reports on the performance of our software. Please use the Software Performance Reports enclosed in each product package to help us provide you with better software products. v Contents Concurrent Commands ....................................................................................................................... 1 Command-line Symbols ................................................................................................................... 1 Command Summary ........................................................................................................................... 2 Built-in Commands ............................................................................................................................. 6 Commands that have Changed from Previous Versions ................................................. 6 8087 ............................................................................................................................................................ 7 APPEND ..................................................................................................................................................... 8 ATTRIB .................................................................................................................................................... 10 AUX .......................................................................................................................................................... 11 BACKUP .................................................................................................................................................. 12 Multiple Floppy Disks ............................................................................................................. 14 Restoring Files to a Hard Disk ........................................................................................... 14 BANK ........................................................................................................................................................ 15 BATCH ..................................................................................................................................................... 16 Invoking and Interrupting a BATCH File ........................................................................ 16 Creating a BATCH File ............................................................................................................ 16 Using Variables in a BATCH File ....................................................................................... 17 Environment Variables ........................................................................................................... 17 CALL Subcommand .................................................................................................................. 18 ECHO Subcommand ....................................................................................... _....................... 18 EXIT Subcommand ................................................................................................................... 18 FOR Subcommand .................................................................................................................... 19 GOTO Subcommand ................................................................................................................ 19 IF Subcommand ......................................................................................................................... 20 PAUSE Subcommand .............................................................................................................. 21 REM Subcommand ................................................................................................................... 22 SHIFT Subcommand ................................................................................................................ 22 BREAK ..................................................................................................................................................... 23 CARDFILE ............................................................................................................................................... 24 CHOIR/CD .............................................................................................................................................. 25 CHOIR Option .............................................................................................................................. 25 CHOIR Special Characters .................................................................................................... 25 Concurrent Directories ........................................................................................................... 26 Using Floating Drives ............................................................................................................. 26 Making a Directory the Current Directory................................................................... 27 How to Display the Current Path ..................................................................................... 27 CHKDSK .................................................................................................................................................. 28 CHSET ..................................................................................................................................................... 29 CLS ........................................................................................................................................................... 32 COpy ....................................................................................................................................................... 33 How to Copy Files between Disk Drives and Directories .................................... 34 How to Copy Files to the Console or Printer ............................................................ 36 How to Create a File with COpy...................................................................................... 36 COPYMENU .......................................................................................................................................... 37 CPM .........................................................................................................................................................
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