COPYTAPE

Section: User Commands (1)
Updated: 17 May 1987
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NAME

copytape - Reel-to-reel tape copy.

SYNOPSIS

copytape [ -d -v -f device -t device ]

DESCRIPTION

copytape copies one tape to another.

Options:

-v: Display the program version number and some other information about the program, including the number and size of tape block buffers.
-d: Display debugging information during tape copy. This slows the program down and may cause the output tape to be considerably longer than the input tape, which for long input tapes may cause the output tape to run off the end of the reel.
-f: From-tape. The device specification of the tape to be copied, by default /dev/rmt12 (drive 0, 1600 bpi, no rewind on close).
-t: To-tape. The device specification of the output tape, by default /dev/rmt13 (drive 1, 1600 bpi, no rewind on close).

NOTES

-f and -t may be omitted, and will default as indicated. If they are included, they must have arguments. If "0" is given as an argument, then /dev/rmt12 will be understood; if "1" is given, then /dev/rmt13. -d and -v may be bundled. E.g. the command "copytape -dvf 0 -t 1" is legal. A "system(date)" command is given at the beginning and the end, so that the copy operation can be timed. This information goes to standard output and can be redirected.

AUTHOR

Frank da Cruz, Columbia University Center for Computing Activities, New York, NY 10027, May 1987.

BUGS

Even without -d, the output tape may be slightly longer than the input tape, so caution should be used when copying almost-full tapes.

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