32v 1m tp

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TP(1) UNIX Programmer's Manual TP(1)


    tp - manipulate tape archive


    tp [ key ] [ name ... ]


    _T_p saves and restores files on DECtape or magtape.  Its
    actions are controlled by the _k_e_y argument.  The key is a
    string of characters containing at most one function letter
    and possibly one or more function modifiers.  Other argu-
    ments 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 (recursively) 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 determined by string com-
            parison, 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
    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 argument must be given.  This function is not
            permitted on magtapes.
    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 _t_p does its work silently.  The v (ver-
              bose) 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 _t_p 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 _t_p 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.




    ar(1), tar(1)


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


    A single file with several links to it is treated like
    several files.
    Binary-coded control information makes magnetic tapes writ-
    ten by _t_p difficult to carry to other machines; _t_a_r(1)
    avoids the problem.