diskcp(C)

diskcp, diskcmp -- copy or compare floppy disks

Syntax

diskcp [ -f ] [ -d ] [ -r ] [ -s ] [ -u ] [ -48ds9 ] [ -96ds9 ] [ -96ds15 ]
[ -135ds9 ] [ -135ds18 ]

diskcmp [ -d ] [ -s ] [ -48ds9 ] [ -96ds9 ] [ -96ds15 ] [ -135ds9 ] [ -135ds18 ]

Description

diskcp is used to make an image (exact copy) of a source floppy disk on a target floppy disk. On machines with one floppy drive, diskcp temporarily transfers the image to the hard disk until a target floppy is inserted into the floppy drive. On machines with two floppy drives, diskcp immediately places the image of the source floppy directly on the target floppy.

diskcmp functions similarly to diskcp. It compares the contents of one floppy disk with the contents of a second floppy disk using the cmp utility.

The options are:

-f: Format the target floppy disk before the image is copied (diskcp only).
-d: The computer has dual floppy drives. diskcp copies the image directly onto the target floppy.
-s: Uses sum(C) to compare the contents of the source and target floppies; gives an error message if the two do not match.
-r: Uses second floppy drive as source drive.
-u: Prints usage message.
-48ds9: This setting is for low density 48tpi (360KB) floppies. It is the default setting.
-96ds9: This setting is for medium density 96tpi (720KB) floppies.
-96ds15: This setting is for high density 96tpi (1.2MB) floppies.
-135ds9: This setting is for low density 135tpi (720KB) 3.5 inch floppies.
-135ds18: This setting is for high density 135tpi (1.44MB) 3.5 inch floppies.

When using the -96ds9 and -96ds15 options of diskcp without the -f option, if the first target disk is unformatted, the program will note it, format it and make the copy. If another copy is requested and another unformatted target disk is inserted, diskcp exits with a ``System error''. Quit, format the floppy, and reinvoke diskcp to make another copy.

Examples

To make a copy of a floppy, place the source floppy in the drive and type:

diskcp

When diskcp has finished copying to the hard disk, it prompts you to insert the target floppy in the drive. If you specify the -f flag when you invoke diskcp, the program formats the target floppy. When the copy is finished, diskcp asks if you would like to make another copy of the same source disk. If you enter ``n'', it asks if you would like to copy another source disk.

Specify the -d flag on the command line if you have two floppy drives:

diskcp -d

Limitations

If diskcp encounters a write error while copying the source image to the target disk, it formats the disk and tries to write the source image again. This happens most often when an unformatted floppy is used and the -f flag is not specified.

Files

/usr/bin/diskcp
/usr/bin/diskcmp
/tmp/disk????

Standards conformance

diskcmp and diskcp are not part of any currently supported standard; they are extensions of AT&T System V provided by The Santa Cruz Operation, Inc.