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tar(1)

Name
     tar - create tape archives and add or extract files

Synopsis
     tar c[BDEFhijlnopPTvwzZ@/[0-7]][bf][X...] [blocksize]
          [tarfile] [size] [exclude-file]...
          {file | -I include-file | -C directory file}...


     tar r[BDEFhijlnTvwzZ@/[0-7]][bf] [blocksize] [tarfile]
          [size]
          {file | -I include-file | -C directory file}...


     tar t[BFhijlnTvzZ[0-7]][f][X...] [tarfile] [size]
          [exclude-file]... {file | -I include-file}...


     tar u[BDEFhijlnTvwzZ@/[0-7]][bf] [blocksize] [tarfile]
          [size] file...


     tar x[BFhilmnjopTvwzZ@/[0-7]][f][X...] [tarfile] [size]
          [exclude-file]... [file]...

Description
     The tar command archives and extracts files to  and  from  a
     single  file  called  a tarfile. A tarfile is usually a mag-
     netic tape, but it can be any file. tar's actions  are  con-
     trolled  by the key argument. The key is a string of charac-
     ters containing exactly one function letter (c, r, t , u, or
     x)  and zero or more function modifiers (letters or digits),
     depending on the function letter used. The key  string  con-
     tains  no  SPACE characters. Function modifier arguments are
     listed on the command  line  in  the  same  order  as  their
     corresponding function modifiers appear in the key string.


     The -I include-file, -C directory file, and  file  arguments
     specify  which  files  or  directories are to be archived or
     extracted. In all cases,  appearance  of  a  directory  name
     refers to the files and (recursively) subdirectories of that
     directory. Arguments appearing within braces ({ })  indicate
     that one of the arguments must be specified.

Operands
     The following operands are supported:

     -C directory file
         Performs a chdir (see cd(1)) operation on directory  and
         performs  the  c  (create)  or  r (replace) operation on
         file. Use short relative path names for file. If file is
         ".",  archive  all  files  in  directory.  This  operand
         enables archiving files from  multiple  directories  not
         related by a close common parent.


     -I include-file
         Opens include-file containing a list of files,  one  per
         line,  and treats it as if each file appeared separately
         on the  command  line.  Be  careful  of  trailing  white
         spaces.  Also beware of leading white spaces, since, for
         each line in the included file, the entire  line  (apart
         from  the  newline) is used to match against the initial
         string of files to include. In the case  where  excluded
         files (see X function modifier) are also specified, they
         take precedence over all included files. If  a  file  is
         specified  in both the exclude-file and the include-file
         (or on the command line), it is excluded.


     file
         A path name  of  a  regular  file  or  directory  to  be
         archived  (when  the c, r or u functions are specified),
         extracted (x) or listed (t). When file is the path  name
         of  a  directory, the action applies to all of the files
         and (recursively) subdirectories of that directory.

         When a file is archived, and the E  flag  (see  Function
         Modifiers)  is not specified, the filename cannot exceed
         256 characters. In addition,  it  must  be  possible  to
         split  the  name  between parent directory names so that
         the prefix is no longer than 155 characters and the name
         is  no  longer than 100 characters. If E is specified, a
         name of up to PATH_MAX characters can be specified.

         For example, a file whose basename is  longer  than  100
         characters  could  not  be  archived without using the E
         flag. A file whose directory portion is  200  characters
         and  whose  basename  is 50 characters could be archived
         (without using E) if a slash appears  in  the  directory
         name somewhere in character positions 151-156.


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

     c
         Create. Writing begins at the beginning of the  tarfile,
         instead of at the end.

     r
         Replace. The named files are written at the end  of  the
         tarfile.  A  file  created with extended headers must be
         updated with extended headers (see E flag under Function
         Modifiers). A file created without extended headers can-
         not be modified with extended headers.


     t
         Table of Contents. The names of the specified files  are
         listed  each  time they occur in the tarfile. If no file
         argument is specified, the names of all  files  and  any
         associated   extended  attributes  in  the  tarfile  are
         listed. With the v function modifier, additional  infor-
         mation for the specified files is displayed.


     u
         Update. The named files are written at the  end  of  the
         tarfile  if  they  are not already in the tarfile, or if
         they have been modified since last written to that  tar-
         file. An update can be rather slow. A tarfile created on
         a 5.x system cannot be updated on a 4.x system.  A  file
         created  with  extended  headers  must  be  updated with
         extended headers (see E flag under Function  Modifiers).
         A  file created without extended headers cannot be modi-
         fied with extended headers.


     x
         Extract or restore. The named files are  extracted  from
         the  tarfile  and  written to the directory specified in
         the tarfile, relative to the current directory. Use  the
         relative  path  names  of  files  and  directories to be
         extracted.

         Absolute path names contained in  the  tar  archive  are
         unpacked  using  the  absolute  path names, that is, the
         leading forward slash (/) is not stripped off.

         By default, absolute pathnames (those that begin with  a
         /  character)  have the leading slash removed, therefore
         extracting those files and directories relative  to  the
         current directory.

         If a named file matches a directory whose  contents  has
         been  written  to  the tarfile, this directory is recur-
         sively extracted. The owner, modification time, and mode
         are  restored, if possible. Otherwise, to restore owner,
         you  must  be  the  super-user.  Character-special   and
         block-special devices (created by mknod(1M)) can only be
         extracted by the super-user.  If  no  file  argument  is
         specified,   the   entire  content  of  the  tarfile  is
         extracted. If the tarfile contains  several  files  with
         the  same  name, each file is written to the appropriate
         directory, overwriting the previous one.  Filename  sub-
         stitution  wildcards cannot be used for extracting files
         from the archive. Rather, use a command of the form:

           tar xvf ... /dev/rmt/0 `tar tf ... /dev/rmt/0 | \
                grep `pattern' `





     When extracting tapes created with the  r  or  u  functions,
     directory modification times can not be set correctly. These
     same functions cannot be used with many tape drives  due  to
     tape  drive  limitations such as the absence of backspace or
     append capabilities.


     When using the r, u, or x functions or the X function modif-
     ier,  the  named  files must match exactly the corresponding
     files in the tarfile. For example,  to  extract  ./thisfile,
     you  must  specify ./thisfile, and not thisfile. The t func-
     tion displays how each file was archived.

  Function Modifiers
     The characters below can be used  in  conjunction  with  the
     letter that selects the desired function.

     b blocksize
         Blocking Factor. Use when reading or writing to raw mag-
         netic  archives  (see  f  below). The blocksize argument
         specifies the number  of  512-byte  tape  blocks  to  be
         included  in  each  read or write operation performed on
         the tarfile. The minimum is 1, the default  is  20.  The
         maximum  value  is  a  function  of the amount of memory
         available and the blocking requirements of the  specific
         tape  device  involved  (see  mtio(7I) for details.) The
         maximum cannot exceed INT_MAX/512 (4194303).

         When a tape archive is being read, its  actual  blocking
         factor  is  automatically  detected, provided that it is
         less than or equal to the nominal blocking  factor  (the
         value of the blocksize argument, or the default value if
         the b modifier is not specified). If the actual blocking
         factor  is  greater  than the nominal blocking factor, a
         read error results. See Example 5 in EXAMPLES.

     B
         Block. Force tar to perform multiple  reads  (if  neces-
         sary) to read exactly enough bytes to fill a block. This
         function modifier enables tar to work across the  Ether-
         net,  since pipes and sockets return partial blocks even
         when more data is coming.  When  reading  from  standard
         input,  "-",  this  function  modifier  is  selected  by
         default to ensure that tar can recover from short reads.


     D
         Data change warnings. Used with  c,  r,  or  u  function
         letters.  Ignored  with  t or x function letters. If the
         size of a file changes while the file is being archived,
         treat  this  condition  as  a  warning  instead of as an
         error. A warning message is still written, but the  exit
         status is not affected.


     E
         Write a tarfile with extended headers. (Used with c,  r,
         or  u  function  letters.  Ignored  with t or x function
         letters.)  When  a  tarfile  is  written  with  extended
         headers,  the  modification  time  is  maintained with a
         granularity of  microseconds  rather  than  seconds.  In
         addition,  filenames  no longer than PATH_MAX characters
         that could not be archived without  E,  and  file  sizes
         greater  than 8GB, are supported. The E flag is required
         whenever the  larger  files  and/or  files  with  longer
         names,  or  whose  UID/GID  exceed  2097151,  are  to be
         archived, or if  time  granularity  of  microseconds  is
         desired.


     f
         File. Use the tarfile argument as the name of  the  tar-
         file.   If  f  is  specified,  /etc/default/tar  is  not
         searched. If f is omitted, tar uses the device indicated
         by the TAPE environment variable, if set. Otherwise, tar
         uses the default values defined in /etc/default/tar. The
         number  matching the archiveN string is used as the out-
         put device with the  blocking  and  size  specifications
         from the file. For example,

           tar -c 2/tmp/*


         writes the output to the device specified as archive2 in
         /etc/default/tar.

         If the name of the tarfile is "-",  tar  writes  to  the
         standard output or reads from the standard input, which-
         ever is appropriate. tar can be used as the head or tail
         of  a pipeline. tar can also be used to move hierarchies
         with the command:

           example% cd fromdir; tar cf - .| (cd todir; tar xfBp -)




     F
         With one F argument, tar excludes all directories  named
         SCCS  and  RCS from the tarfile. With two arguments, FF,
         tar excludes all directories named  SCCS  and  RCS,  all
         files with .o as their suffix, and all files named errs,
         core, and a.out.


     h
         Follow symbolic links as if they were  normal  files  or
         directories.  Normally,  tar  does  not  follow symbolic
         links.


     i
         Ignore directory checksum errors.


     j
         c mode only. Compress the resulting archive with  bzip2.
         In  extract  or  list modes, this option is ignored. The
         implementation   recognizes   bzip2   compression   type
         automatically  when  reading  archives.  Upgrade/replace
         first decompresses and then applies the  same  mechanism
         to compress the archive automatically.


     l
         Link. Output error message  if  unable  to  resolve  all
         links  to  the  files being archived. If l is not speci-
         fied, no error messages are printed.


     m
         Modify. The modification time of the file is the time of
         extraction.  This  function  modifier is valid only with
         the x function.

     n
         The file being read is a non-tape device. Reading of the
         archive is faster since tar can randomly seek around the
         archive.


     o
         Ownership. Assign to extracted files the user and  group
         identifiers of the user running the program, rather than
         those on tarfile. This is the default behavior for users
         other  than  root. If the o function modifier is not set
         and the user is root, the extracted files takes  on  the
         group  and user identifiers of the files on tarfile (see
         chown(1) for more information). The o function  modifier
         is only valid with the x function.


     p
         Restore the named files to  their  original  modes,  and
         ACLs  if applicable, ignoring the present umask(1). This
         is the default behavior if invoked  as  super-user  with
         the  x function letter specified. If super-user, SETUID,
         and sticky information are also extracted, and files are
         restored  with  their  original  owners and permissions,
         rather than owned by root. When this  function  modifier
         is  used  with  the  c function, ACLs are created in the
         tarfile along with other information. Errors occur  when
         a tarfile with ACLs is extracted by previous versions of
         tar.


     P
         For archive creation, suppress the addition of a  trail-
         ing / on directory entries in the archive.

         For archive extraction, preserve pathnames. By  default,
         absolute pathnames (those that begin with a / character)
         have the leading slash removed when extracting archives.
         Also, tar refuses to extract archive entries whose path-
         names contain a dot-dot (..).

         This option suppresses these behaviors.


     T
         This modifier is only available if the system is config-
         ured with Trusted Extensions.

         When this modifier is used with the function  letter  c,
         r,  or  u for creating, replacing or updating a tarfile,
         the sensitivity label associated with each archived file
         and directory is stored in the tarfile.

         Specifying T implies the function modifier p.

         When used with the function letter x  for  extracting  a
         tarfile, the tar program verifies that the file's sensi-
         tivity label specified in the archive equals the  sensi-
         tivity  label  of the destination directory. If not, the
         file is not restored. This  operation  must  be  invoked
         from  the  global zone. If the archived file has a rela-
         tive pathname,  it  is  restored  to  the  corresponding
         directory  with  the  same  label, if available. This is
         done by prepending to the current destination  directory
         the  root  pathname  of  the zone whose label equals the
         file. If no such zone exists, the file is not restored.

         Limited  support  is  provided  for  extracting  labeled
         archives   from  Trusted  Solaris  8.  Only  sensitivity
         labels, and  multi-level  directory  specifications  are
         interpreted.  Privilege  specifications and audit attri-
         bute flags are silently  ignored.  Multilevel  directory
         specifications  including symbolic links to single level
         directories are are mapped into zone-relative  pathnames
         if a zone with the same label is available. This support
         is intended to facilitate migration of home directories.
         Architectural  differences  preclude  the  extraction of
         arbitrarily labeled files from Trusted  Solaris  8  into
         identical  pathnames in Trusted Extensions. Files cannot
         be extracted unless their  archived  label  matches  the
         destination label.


     v
         Verbose. Output the name of each file  preceded  by  the
         function  letter.  With the t function, v provides addi-
         tional information about the tarfile entries. The  list-
         ing  is  similar to the format produced by the -l option
         of the ls(1) command.


     w
         What. Output the action to be taken and the name of  the
         file,   then  await  the  user's  confirmation.  If  the
         response is affirmative, the action is performed; other-
         wise,  the action is not performed. This function modif-
         ier cannot be used with the t function.


     X
         Exclude.  Use  the  exclude-file  argument  as  a   file
         containing  a  list of relative path names for files (or
         directories) to be excluded from the tarfile when  using
         the  functions  c, x, or t. Be careful of trailing white
         spaces. Also beware of leading white spaces, since,  for
         each  line  in the excluded file, the entire line (apart
         from the newline) is used to match against  the  initial
         string  of  files  to exclude. Lines in the exclude file
         are matched exactly, so an entry like  "/var"  does  not
         exclude the /var directory if tar is backing up relative
         pathnames. The entry should  read  "./var"  under  these
         circumstances.  The  tar  command  does not expand shell
         metacharacters  in  the  exclude  file,  so   specifying
         entries like "*.o" does not have the effect of excluding
         all files with names suffixed with ".o".  If  a  complex
         list of files is to be excluded, the exclude file should
         be generated by some means such as the  find(1)  command
         with appropriate conditions.

         Multiple X arguments can be used, with one  exclude-file
         per  argument.  In the case where included files (see -I
         include-file operand) are also specified,  the  excluded
         files take precedence over all included files. If a file
         is specified in both the exclude-file and  the  include-
         file (or on the command line), it is excluded.


     z
         c mode only. Compress the resulting archive  with  gzip.
         In  extract  or  list  mode, this option is ignored. The
         implementation recognizes gzip compression type automat-
         ically  when  reading  archives.  Upgrade/replace  first
         decompresses and then  applies  the  same  mechanism  to
         compress the archive automatically.


     Z
         c  mode  only.  Compress  the  resulting  archive   with
         compress.  See  compress(1).  In  extract or list modes,
         this option is ignored.  The  implementation  recognizes
         compress  compression  type  automatically  when reading
         archives. Upgrade/replace first  decompresses  and  then
         applies  the  same  mechanism  to  compress  the archive
         automatically.


     @
         Include extended attributes in archive. By default,  tar
         does  not place extended attributes in the archive. With
         this flag, tar looks  for  extended  attributes  on  the
         files  to  be  placed in the archive and add them to the
         archive.  Extended  attributes  go  in  the  archive  as
         special  files  with  a  special  type  label. When this
         modifier is used with the x  function,  extended  attri-
         butes  are extracted from the tape along with the normal
         file  data.  Extended  attribute  files  can   only   be
         extracted  from  an  archive  as  part  of a normal file
         extract.  Attempts  to  explicitly   extract   attribute
         records are ignored.


     /
         Include  extended  system  attributes  in  archive.   By
         default,  tar  does not place extended system attributes
         in the archive. With this flag, tar looks  for  extended
         system  attributes  on  the  files  to  be placed in the
         archive and adds them to the  archive.  Extended  system
         attributes  go  in  the  archive as special files with a
         special type label. When this modifier is used with  the
         x  function,  extended  system  attributes are extracted
         from the tape along with the normal file data.  Extended
         system  attribute  files  can  only be extracted from an
         archive as part of a normal file  extract.  Attempts  to
         explicitly extract attribute records are ignored.


     [0-7]
         Select  an  alternative  drive  on  which  the  tape  is
         mounted.   The   default   entries   are   specified  in
         /etc/default/tar. If no digit or f function modifier  is
         specified,  the entry in /etc/default/tar with digit "0"
         is the default.

Usage
     See largefile(5) for the description of the behavior of  tar
     when  encountering  files greater than or equal to 2 Gbyte (
     2^31 bytes).


     The automatic determination of the  actual  blocking  factor
     can  be fooled when reading from a pipe or a socket (see the
     B function modifier below).


     1/4" streaming tape has an inherent blocking factor  of  one
     512-byte block. It can be read or written using any blocking
     factor.


     This function modifier works for archives on disk files  and
     block special devices, among others, but is intended princi-
     pally for tape devices.

     For information on tar header format, see archives.h(3HEAD).

Examples
     Example 1 Creating an Archive of Your Home Directory


     The following is an example using tar to create  an  archive
     of   your   home  directory  on  a  tape  mounted  on  drive
     /dev/rmt/0:


       example% cd
       example% tar cvf /dev/rmt/0 .
       messages from tar




     The c function letter means create the archive. The v  func-
     tion modifier outputs messages explaining what tar is doing.
     The f function modifier indicates that the tarfile is  being
     specified  (/dev/rmt/0  in this example). The dot (.) at the
     end of the command line indicates the current directory  and
     is the argument of the f function modifier.



     Display the table of contents of the tarfile with  the  fol-
     lowing command:


       example% tar tvf /dev/rmt/0




     The output is similar to the following for the POSIX locale:


       rw-r--r--   1677/40    2123    Nov  7 18:15 1985    ./test.c
       ...
       example%




     The columns have the following meanings:


         o    column 1 is the access permissions to ./test.c

         o    column 2 is the user-id/group-id of ./test.c

         o    column 3 is the size of ./test.c in bytes

         o    column 4 is the modification date of ./test.c. When
              the  LC_TIME  category  is  not  set  to  the POSIX
              locale, a different format and date order field can
              be used.

         o    column 5 is the name of ./test.c


     To extract files from the archive:


       example% tar xvf /dev/rmt/0
       messages from tar
       example%




     If there are multiple archive  files  on  a  tape,  each  is
     separated  from  the following one by an EOF marker. To have
     tar read the first and second archives from a tape with mul-
     tiple  archives on it, the non-rewinding version of the tape
     device name must be used with the f  function  modifier,  as
     follows:


       example% tar xvfp /dev/rmt/0n read first archive from tape
       messages from tar
       example% tar xvfp /dev/rmt/0n read second archive from tape
       messages from tar
       example%




     Notice that in some earlier releases, the above scenario did
     not  work correctly, and intervention with mt(1) between tar
     invocations was necessary. To emulate the old behavior,  use
     the  non-rewind  device name containing the letter b for BSD
     behavior. See the Close Operations section of  the  mtio(7I)
     manual page.


     Example 2 Archiving Files from /usr/include and from /etc to
     Default Tape Drive 0


     To archive files from /usr/include and from /etc to  default
     tape drive 0:

       example% tar c -C /usr include -C /etc .




     The table of contents from the resulting tarfile would  pro-
     duce output like the following:


       include/
       include/a.out.h
       and all the other files in /usr/include ...
       ./chown and all the other files in /etc




     To extract all files in the include directory:


       example% tar xv include
       x include/, 0 bytes, 0 tape blocks \
           and all files under include ...



     Example 3 Transferring Files Across the Network


     The following is an example  using  tar  to  transfer  files
     across the network. First, here is how to archive files from
     the local machine (example) to a tape  on  a  remote  system
     (host):


       example% tar cvfb - 20 files| \
           ssh host dd of=/dev/rmt/0 obs=20b
       messages from tar
       example%




     In the example above, we are creating a tarfile with  the  c
     key  letter,  asking  for verbose output from tar with the v
     function modifier, specifying the name of the output tarfile
     using  the f function modifier (the standard output is where
     the tarfile appears, as indicated  by  the  `-'  sign),  and
     specifying  the blocksize (20) with the b function modifier.
     If you want to change the blocksize,  you  must  change  the
     blocksize  arguments  both  on the tar command and on the dd
     command.

     Example 4 Retrieving Files from a Tape on the Remote  System
     Back to the Local System


     The following is an example that uses tar to retrieve  files
     from a tape on the remote system back to the local system:


       example% ssh -n host dd if=/dev/rmt/0 bs=20b | \
           tar xvBfb - 20 files
       messages from tar
       example%




     In the example above, we are  extracting  from  the  tarfile
     with  the  x  key letter, asking for verbose output from tar
     with the v function modifier, telling tar it is reading from
     a  pipe with the B function modifier, specifying the name of
     the input tarfile using the f function modifier  (the  stan-
     dard input is where the tarfile appears, as indicated by the
     "-" sign), and specifying the  blocksize  (20)  with  the  b
     function modifier.


     Example 5 Creating an Archive of the Home Directory


     The following example creates an archive of the home  direc-
     tory on /dev/rmt/0 with an actual blocking factor of 19:


       example% tar cvfb /dev/rmt/0 19 $HOME




     To recognize this archive's actual blocking  factor  without
     using the b function modifier:


       example% tar tvf /dev/rmt/0
       tar: blocksize = 19
       ...




     To recognize this archive's actual blocking factor  using  a
     larger nominal blocking factor:

       example% tar tvf /dev/rmt/0 30
       tar: blocksize = 19
       ...




     Attempt to recognize this archive's actual  blocking  factor
     using a nominal blocking factor that is too small:


       example% tar tvf /dev/rmt/0 10
       tar: tape read error



     Example 6 Creating Compressed Archives


     The following example creates  a  compressed  archive  using
     bzip:


       example% tar cjf tarfile /tmp/*




     The compressed file name is tarfile.bz2



     The same compressed archive would be created in this case if
     the following sequence of commands had been used instead:


       example% tar cf tarfile /tmp/*
       example% bzip2 tarfile




     however, the creation and removal of the  intermediate  file
     is  eliminated.  The function modifiers z and Z behave simi-
     larly, but use gzip and compress, respectively.



     The following example creates  a  compressed  archive  using
     compress:

       example% tar cZf tarfile /tmp/*




     The compressed file name is tarfile.Z.



     The following example creates  a  compressed  archive  using
     gzip:


       example% tar czf tarfile /tmp/*




     The compressed file name is tarfile.gz.


     Example 7 Extracting Files from a Compressed Archive


     The following  examples  extract  files  from  a  compressed
     archive:  For  archives  compressed  using bzip2 compression
     mode:


       example% tar xvf tarfile.bz2
       example% tar xvfj tarfile.bz2
       example% bzcat tarfile.bz2 | tar xvf -




     For archives compressed using compress compression mode:


       example% tar xvf tarfile.Z
       example% tar xvfZ tarfile.Z
       example% zcat tarfile.Z | tar xvf -




     For archives compressed using gzip compression mode:


       example% tar xvf tarfile.gz
       example% tar xvfz tarfile.gz
       example% gzcat tarfile.gz | tar xvf -

Environment Variables
     TMPDIR
         Creates  a  temporary   file   in   /tmp   by   default.
         Otherwise, tar uses the directory specified by TMPDIR.



     See environ(5) for descriptions of the following environment
     variables  that  affect  the  execution  of tar: LC_COLLATE,
     LC_CTYPE, LC_MESSAGES, LC_TIME, TZ, and NLSPATH.


     Affirmative responses are processed using the extended regu-
     lar  expression  defined  for  the  yesexpr  keyword  in the
     LC_MESSAGES category of the user's locale. The locale speci-
     fied  in  the  LC_COLLATE  category  defines the behavior of
     ranges, equivalence classes, and  multi-character  collating
     elements  used  in  the  expression defined for yesexpr. The
     locale specified  in  LC_CTYPE  determines  the  locale  for
     interpretation  of sequences of bytes of text data a charac-
     ters, the behavior of character classes used in the  expres-
     sion defined for the yesexpr. See locale(5).

Exit Status
     The following exit values are returned:

     0
         Successful completion.


     >0
         An error occurred.

Files
         o    /dev/rmt/[0-7][b][n]

         o    /dev/rmt/[0-7]l[b][n]

         o    /dev/rmt/[0-7]m[b][n]

         o    /dev/rmt/[0-7]h[b][n]

         o    /dev/rmt/[0-7]u[b][n]

         o    /dev/rmt/[0-7]c[b][n]

         o    /etc/default/tar

     Setting for /etc/default/tar might look like the following:

       archive0=/dev/rmt/0
       archive1=/dev/rmt/0n
       archive2=/dev/rmt/1
       archive3=/dev/rmt/1n
       archive4=/dev/rmt/0
       archive5=/dev/rmt/0n
       archive6=/dev/rmt/1
       archive7=/dev/rmt/1n

Attributes
     See attributes(5) for descriptions of the  following  attri-
     butes:



     tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i)  ATTRI-
     BUTE  TYPEATTRIBUTE  VALUE  _  Availabilitysystem/core-os  _
     CSIEnabled _ Interface StabilityCommitted

See Also
     ar(1), basename(1), cd(1), chown(1),  compress(1),  cpio(1),
     csh(1),  dirname(1),  find(1),  ls(1),  mt(1),  pax(1), setfacl(1),
     umask(1),  mknod(1M),  archives.h(3HEAD),   attributes(5),
     environ(5), fsattr(5), largefile(5), mtio(7I)

Diagnostics
     Diagnostic messages are output for bad  key  characters  and
     tape  read/write errors, and for insufficient memory to hold
     the link tables.

Notes
     There is no way to access the n-th occurrence of a file.


     Tape errors are handled ungracefully.


     The tar archive format allows UIDs and GIDs up to 2097151 to
     be  stored  in  the archive header. Files with UIDs and GIDs
     greater than this value is archived with the UID and GID  of
     60001.


     If an archive is created that  contains  files  whose  names
     were  created  by  processes  running in multiple locales, a
     single locale that uses a full 8-bit codeset  (for  example,
     the  en_US locale) should be used both to create the archive
     and to extract files from the archive.


     Neither the r function letter nor the u function letter  can
     be  used  with  quarter-inch archive tapes, since these tape
     drives cannot backspace.


     Since tar has no options, the standard "--" argument that is
     normally used in other utilities to terminate recognition of
     options is not needed. If used, it is recognized only as the
     first argument and is ignored.


     Since -C directory  file  and  -I  include-file  are  multi-
     argument  operands, any of the following methods can be used
     to archive or extract a file named -C or -I:

         1.   Specify them using file  operands  containing  a  /
              character on the command line (such as /home/joe/-C
              or ./-I).

         2.   Include them in an include file  with  -I  include-
              file.

         3.   Specify the directory in which the file resides:

                -C directory -C


              or

                -C directory -I



         4.   Specify the entire  directory  in  which  the  file
              resides:

                -C directory .
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