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- DISKDUP Users Guide
-
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-
- Back in the old days when you wanted to make a copy of a
- disk, all you had to do was put it in the drive and use
- diskcopy. There was no muss or fuss. Even machines with
- only 512k could make a copy of a 360k disk in a single pass.
-
- Today, it is a different story. With the introduction of the
- PC/AT we started using high capacity disks that would hold
- 1.2 megabytes of information. With the PS/2 machines we use
- 720k and 1.44 megabyte 3.5 inch floppies.
-
- Alas, we are still using the same old diskcopy. It now takes
- SEVERAL passes to copy a single disk (unless you have two of
- the high capacity drives). The situation becomes even worse
- if you want to make multiple copies of a single disk. I
- quickly tired of this floppy shuffle, so I wrote DISKDUP
- (pronounced disk dupe, as in duplicate).
-
- DISKDUP performs the same functions that diskcopy does, but
- it eliminates all of the disk swapping. How does it work you
- ask? Simple, almost everyone has a hard disk. I just use
- the hard disk for virtual memory. Not only does this
- eliminate the disk swapping, it also allows making multiple
- copies of a disk with a single read pass. Of course the hard
- disk is left in the same condition in which it was found.
- All of the temporary files are removed from the hard disk at
- the end of the copy session.
-
- DISKDUP also adds a couple more extras:
-
- o An on screen display keeps you informed at all stages of
- the copy.
-
- o Optional verification after each write operation with the
- /v switch.
-
-
- USAGE: DISKDUP <floppy disk> <hard disk> [ /v ]
-
- EXAMPLE: DISKDUP A: C:
-
-
- DISKDUP requires the floppy drive letter to be either A or B.
- Some systems with an add-on 3.5 inch drive access them
- through a DRIVER.SYS entry in the CONFIG.SYS file. In this
- case you would normally use the drive letter D or perhaps E.
- DISKDUP does not need the information provided by the driver
- and will work properly as A or B.
-
- DISKDUP will format the target disk if it has not been
- previously formatted. In most cases it is not necessary to
- use the verify option. However, it only adds a few seconds
- to the copy time and really does provide peace of mind.
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- page 1
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- DISKDUP Users Guide
-
-
-
- DISKDUP and this doc file are Copyrighted (c) 1989 by Roger
- K. Snyder. I am releasing DISKDUP as shareware. This means
- that you may freely use and copy the program. In fact I
- encourage you to give a copy of DISKDUP to everyone you know.
- However, if you find DISKDUP to be useful, please send $10.00
- to:
-
- Roger K. Snyder
- 7605 McKenzie Terrace #7
- Vero Beach, FL 32968
-
-
- For those who are curious, DISKDUP is written in 'Microsoft
- C' except for the BIOS level floppy disk I/O routines, which
- are written in assembler.
-
-
- Revision history:
-
- 1.0 Initial release. Required FORMAT.COM to be in the path.
-
- 1.01 Added inline code to format target disks.
-
- 1.02 Added /v option to verify disk after write operations.
-
- 1.03 Improved error detection. Added control-break handler.
-
- 1.04 Streamlined code. Added ability to copy ANOTHER disk
- without reloading program.
-
- 1.05 Improved user interface. The keyboard buffer is
- now flushed before accepting input. No more "Oops, I
- hit the enter key one time too many".
-
- And now for the legal mumbo jumbo which should not be needed
- but the lawyers say that it is:
-
-
- DISCLAIMER
-
- This program is provided "as is" with no warranties
- whatsoever, either expressed or implied, including without
- limitation, warranties of merchantability or fitness for a
- particular purpose. The entire risk as to the quality and
- performance of the program is with you. Should this program
- be defective, you assume the entire cost of all necessary
- servicing, repair or correction.
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- page 2
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