tp man page on UNIXv7

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TP(1)									 TP(1)

NAME
       tp - manipulate tape archive

SYNOPSIS
       tp [ key ] [ name ... ]

DESCRIPTION
       Tp  saves  and  restores	 files on DECtape or magtape.  Its actions are
       controlled by the key argument.	The key is a string of characters con‐
       taining	at  most one function letter and possibly one or more function
       modifiers.  Other arguments to the command are file or directory	 names
       specifying  which  files are to be dumped, restored, or listed.	In all
       cases, appearance of a directory name refers to the files  and  (recur‐
       sively) subdirectories of that directory.

       The  function  portion  of the key is specified by one of the following
       letters:

       r       The named files are written on the tape.	  If  files  with  the
	       same  names already exist, they are replaced.  `Same' is deter‐
	       mined by string comparison, so `./abc' can never be the same as
	       `/usr/dmr/abc' even if `/usr/dmr' is the current directory.  If
	       no file argument is given, `.' is the default.

       u       updates the tape.  u is like r, but a file is replaced only  if
	       its  modification  date	is  later  than the date stored on the
	       tape; that is to say, if it has changed since it was dumped.  u
	       is the default command if none is given.

       d       deletes the named files from the tape.  At least one name argu‐
	       ment must be given.  This function is  not  permitted  on  mag‐
	       tapes.

       x       extracts the named files from the tape to the file system.  The
	       owner and mode are restored.  If no file argument is given, the
	       entire contents of the tape are extracted.

       t       lists the names of the specified files.	If no file argument is
	       given, the entire contents of the tape is listed.

       The following characters may be used in addition to  the	 letter	 which
       selects the function desired.

       m	 Specifies magtape as opposed to DECtape.

       0,...,7	 This modifier selects the drive on which the tape is mounted.
		 For DECtape, x is default; for magtape `0' is the default.

       v	 Normally tp does its work silently.  The v  (verbose)	option
		 causes it to type the name of each file it treats preceded by
		 the function letter.  With  the  t  function,	v  gives  more
		 information about the tape entries than just the name.

       c	 means	a  fresh  dump is being created; the tape directory is
		 cleared before beginning.  Usable only with r	and  u.	  This
		 option	 is  assumed  with  magtape  since it is impossible to
		 selectively overwrite magtape.

       i	 Errors reading and writing the tape are noted, but no	action
		 is  taken.   Normally,	 errors	 cause a return to the command
		 level.

       f	 Use the first named file, rather than a tape, as the archive.
		 This option is known to work only with x.

       w	 causes	 tp  to	 pause	before	treating  each	file, type the
		 indicative letter and the file name (as with v) and await the
		 user's	 response.   Response  y  means	 `yes', so the file is
		 treated.  Null response means `no', and  the  file  does  not
		 take  part  in	 whatever  is  being  done.   Response x means
		 `exit'; the tp command	 terminates  immediately.   In	the  x
		 function,  files  previously  asked about have been extracted
		 already.  With r, u, and d no change has  been	 made  to  the
		 tape.

FILES
       /dev/tap?
       /dev/mt?

SEE ALSO
       ar(1), tar(1)

DIAGNOSTICS
       Several;	 the  non-obvious  one	is `Phase error', which means the file
       changed after it was selected for dumping but before it was dumped.

BUGS
       A single file with several links to it is treated like several files.

       Binary-coded control information makes magnetic	tapes  written	by  tp
       difficult to carry to other machines; tar(1) avoids the problem.

				  deprecated				 TP(1)
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