This little article can also be found in the latest issue of MODEMNEWS (#24) or on some BB

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This little article can also be found in the latest issue of MODEMNEWS (#24) or on some BBSs as DOS5NEWS.ZIP. It is *NOT* I who has written this, I just copied it! What will be new with DOS 5.00? Well, DOS 5.00 will probably be out by the end of 1990, and you are probably anxious to know what is new. Most people either don't know what is new, or "can't tell you". I'll tell you all I know (and whatever I can make up). Maybe I shouldn't be telling anyone , but no one knows who I am so it doesn't matter. Anonymous User Changes/Additions: 1. DOS can now load itself into the first 64K of Extended memory if you have it. You must have the line, "DOS=HIGH" in your config.sys and you must have at least 64K of extended memory available. This will only work on AT machines since 8088/8086 processors can only address up to 1 Megabyte of memory, and Extended Memory begins at 1 Meg. Loading DOS high will free up quite a bit of valuable conventional memory. 2. The QuickBasic interpreter is included along with GWBasic. 3. The Shell program (DOSSHELL) has been completely changed. It now resembles the "File Manager" Program that comes with Windows or OS/2. DOSSHELL can be run in either graphics or text mode, in color or black and white. The F1 key brings up online help. 4. If the environment variable "TEMP" is set, DOS will use the directory set in "TEMP" to write temporary files for piping operations. If there is no "TEMP" directory set, the current directory is used. 5. If the environment variable "DIRCMD" is set, DOS uses it for all "DIR" commands. For example, if "DIRCMD=/W", when you type "DIR", DOS would act like you typed "DIR/W" (Wide display). 6. A short help screen is availa ble for all DOS commands by adding a "/?" after the command, for example, "D IR /?" would give you a help screen for the DIR command. 7. There is a utility called "DOSKEY" that is basically a command line editor that lets you backup through your previous DOS commands. Here is the help screen for DOSKEY: DOSKEY [/reinstall] [/bufsize=] [/dmacs] [/dhist] [macro=text] /reinstall Installs a new copy of doskey. /bufsize= Specifies the size of the command buffer. /dmacs Displays all macros and lets you redirect them to a file. /dhist Displays all command lines stored in memory . 8. A program called UNFORMAT is included. It restores a hard drive to i ts condition prior to the last FORMAT command. 9. The DIR command now reports how many bytes the files listed total up to. Here is an example DIR command : E:\>dir Volume in drive E is whatever Directory of E: \ WIERDOS

06-28-90 12:42a DUDE ZIP 724409 07-26-90 10:14p TMP 07-28-90 6:32p IHATE-U 06-28-90 12:42a MASM EXE 103175 07-31-87 12:00a STSCFG CFG 2339 04-30-90 1:49a SD INI 2497 07-13-90 2:52a FRECOVER DAT 50688 07-14-90 1:25a 8 File(s) 3883108 bytes 21868544 bytes free E: \> 10. The FORMAT command now supports 2.88 Meg 3.5" diskettes. Here are the help screens for a few of the DOS commands: DIR [pathname] [/p] [/w] [/a:attributes] [/o:sortorder] [/s] [/b] /p Pause after each screen page of display . /w List Files in columns with up to five filenames on each line. /a:attributes Displays only files with the attributes you specify. /o:sortorder Displays files sorted in the specified order. /s Displays files in the s pecified directory and all subdirectories. /b Lists filenames, one per line , without any file information. FORMAT drive: [/1] [/4] [/8] [/n:sectors] [/t:tracks] [/f:size] [/ b] [/s] [/u] [/v[:label]] /1 Formats a single side of a floppy disk. /4 Forces a high-capacity floppy drive to format a 360K Floppy-disk. /8 Formats eight sectors per track. /n Specifies the number of sectors per track. /t Specifies the number of tracks on the disk. /f Specifies the size of the floppy disk to format. /b Formats the disk, leaving space to copy an operating system. /s Copies the operating system files. /u Specifies an unconditional format for a hard disk. /v Specifies the volume label. COPY [pathname1] [pathname2] [/v] [/a] [/b] /v Verifies sectors written on the target disk. /a Copies Ascii files. /b Copies binary files. BACKUP source destination [/s] [/m] [/a] [/f:size] [/d:date] [/t:time] [/L:pathname] /s Backs up subdirectories /m Backs up only those files that have changed since the last backup /a Adds backed-up files to an existing backup disk /d:date Backs up only files modified since the specified date /t:time Backs up only files modified since the specified time /L:pathname Creates a log entry to record the backup operation /f:size Formats the target backup disk RESTORE drive1: [drive2] [pathname] [/s] [/p] [/b:date] [/a:date] [/e :time] [/l:time] [/m] [/n] /s Restores all subdirectories. /p Prompts before restoring read-only files or filed modified since the backup. /b Restores only those files last modified on or before date. /a Restores only those files last modified on or after date. /e Restores only those files last modified /n Restores only those files that no longer exist on the target disk MODE - Configure a device. Device Status: MODE [device] [/sta] Printer port: MODE LPTn[cols=c] [lines=l] [retry=r] Serial port: MODE COMm baud=b [data=d] [stop=s] [parity=p] [retry=r] Display mode: MODE con:[cols=m] [lines=n] Typematic rate: MODE con [:] [rate=r] [delay=d] Prepare codepage: MODE device cp prepare=((yyy) [drive:][path]filename Select codepage: MODE device cp select=yyy Redirect printing: MODE LPTn[:]=COMm[:] XCOPY pathname1 [pathname2] [/a] [/d:date] [/e] [ /m] [/p] [/s] [/v] [/w] /a Copy files with archive bit, but don't modify archive bit. /d Copies source files modified on or after specified date. /e Copies any subdirectories, even if they are empty. /m Copy files with archive bit set and clear the archive bit. /p Prompts before creating a new file in the target directory. /s Copy directories and subdirectories, unless empty. /v Verify each file as it is written to the target. /w Causes xcopy to wait before it starts copying files. There is also a neat little program included with the beta version of DOS 5.0 called "Microsoft Infer". I don't know if Infer will be included with the release version of DOS. Infer tells lots of useful information about your system , like: Operating System Version, Machine type, Environment, Processor type, Memory info, Video Adapter info, Serial/Parallel port info, disk drive info, and much more. Infer includes a ROM BIOS browser, memory browser, and several other useful functions.


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