tcopy(1) [netbsd man page]

TCOPY(1)						    BSD General Commands Manual 						  TCOPY(1)

NAME

     tcopy -- copy and/or verify mag tapes

SYNOPSIS

     tcopy [-cvx] [-s maxblk] [src [dest]]

DESCRIPTION

     tcopy is designed to copy magnetic tapes.	The only assumption made about the tape is that there are two tape marks at the end.  tcopy with
     only a source tape (/dev/rst0 by default) specified will print information about the sizes of records and tape files.  If a destination is
     specified a copy will be made of the source tape.	The blocking on the destination tape will be identical to that used on the source tape.
     Copying a tape will yield the same output as if just printing the sizes.

     Options:

     -c        Copy src to dest and then verify that the two tapes are identical.

     -s maxblk
	       Specify a maximum block size, maxblk.

     -v        Given the two tapes, src and dest verify that they are identical.

     -x        Output all informational messages to the standard error.  This option is useful when dest is /dev/stdout.

SEE ALSO

     mtio(4)

HISTORY

     The tcopy command appeared in 4.3BSD.

BSD
								  April 17, 1994							       BSD

MT(1)							      General Commands Manual							     MT(1)

NAME

       mt - magnetic tape manipulating program

SYNOPSIS

       mt [ -f tapename ] command [ count ]

DESCRIPTION

       Mt  is  used  to  give commands to a magnetic tape drive.  If a tape name is not specified, the environment variable TAPE is used;  if TAPE
       does not exist, mt uses the device /dev/rmt12.  Note that tapename must reference a raw (not block) tape device.  By  default  mt  performs
       the requested operation once.  Operations may be performed multiple times by specifying count.

       The available commands are listed below.  Only as many characters as are required to uniquely identify a command need be specified.

       eof, weof
	      Write count end-of-file marks at the current position on the tape.

       fsf    Forward space count files.

       fsr    Forward space count records.

       bsf    Back space count files.

       bsr    Back space count records.

       rewind Rewind the tape (Count is ignored).

       offline, rewoffl
	      Rewind the tape and place the tape unit off-line (Count is ignored).

       status Print status information about the tape unit.

       cacheon
	      Enable the readahead/writebehind cache on the tape unit.

       cacheoff
	      Turn off the readahead/writebehind cache on the tape unit.

       Mt returns a 0 exit status when the operation(s) were successful, 1 if the command was unrecognized, and 2 if an operation failed.

       The cacheon and cacheoff commands currently only apply to the TMSCP driver and then only for certain drives such as the TU81+.  No error is
       produced by the TMSCP driver if the cache commands are used.  Other drivers will return an error code  since  they  do  not  recognize  the
       MTCACHE and MTNOCACHE functions codes.  See mtio(4).

FILES

       /dev/rmt* Raw magnetic tape interface

SEE ALSO

       mtio(4), tmscp(4), dd(1), ioctl(2), environ(7)

4th Berkeley Distribution					 December 22, 1995							     MT(1)