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- I found this little bit of text on a BBS in the USofA ... I have no
- connection with Microsoft and am not a beta-tester of DOS5, so all this
- makes good reading (ho-hum the DR-DOS mob yawn, done it all before) for
- us plain MS-DOS 3 or 4 boys.
-
- ========================================================================
-
- 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 <DIR> 06-28-90 12:42a
- DUDE ZIP 724409 07-26-90 10:14p
- TMP <DIR> 07-28-90 6:32p
- IHATE-U <DIR> 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.