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TAR(1)                           User Commands                          TAR(1)

       tar - manual page for tar 1.23

       tar [OPTION...] [FILE]...

       GNU  'tar'  saves  many  files together into a single tape or disk archive, and can
       restore individual files from the archive.

       Note that this manual page contains just very brief description  (or  more  like  a
       list  of possible functionality) originally generated by the help2man utility.  The
       full documentation for tar is maintained as a Texinfo manual.  If the info and  tar
       programs  are  properly  installed at your site, the command 'info tar' should give
       you access to the complete manual.

       tar -cf archive.tar foo bar
              # Create archive.tar from files foo and bar.

       tar -tvf archive.tar
              # List all files in archive.tar verbosely.

       tar -xf archive.tar
              # Extract all files from archive.tar.

              Main operation mode:

       -A, --catenate, --concatenate
              append tar files to an archive

       -c, --create
              create a new archive

       -d, --diff, --compare
              find differences between archive and file system

              delete from the archive (not on mag tapes!)

       -r, --append
              append files to the end of an archive

       -t, --list
              list the contents of an archive

              test the archive volume label and exit

       -u, --update
              only append files newer than copy in archive

       -x, --extract, --get
              extract files from an archive

       -C, --directory=DIR
              change to directory DIR

       -f, --file=ARCHIVE
              use archive file or device ARCHIVE

       -j, --bzip2
              filter the archive through bzip2

        -J, --xz
              filter the archive through xz

       -p, --preserve-permissions
              extract  information  about  file permissions (default for superuser)

       -v, --verbose
              verbosely list files processed

       -z, --gzip
              filter the archive through gzip

Operation modifiers:
              check device numbers when creating incremental archives (default)

       -g, --listed-incremental=FILE
              handle new GNU-format incremental backup

       -G, --incremental
              handle old GNU-format incremental backup

              do not exit with nonzero on unreadable files

              dump level for created listed-incremental archive

       -n, --seek
              archive is seekable

              do not check device numbers when creating incremental archives

              archive is not seekable

              process only the NUMBERth occurrence of  each  file  in  the  archive;  this
              option  is  valid  only in conjunction with one of the subcommands --delete,
              --diff, --extract or --list and when a list of files is given either on  the
              command line or via the -T option; NUMBER defaults to 1

              set version of the sparse format to use (implies --sparse)

       -S, --sparse
              handle sparse files efficiently

Overwrite control:
       -k, --keep-old-files
              don't replace existing files when extracting, treat them as errors

              don't replace existing files when extracting, silently skip over them

              don't replace existing files that are newer than their archive copies

              preserve metadata of existing directories

              overwrite existing files when extracting

              overwrite metadata of existing directories when extracting (default)

              empty hierarchies prior to extracting directory

              remove files after adding them to the archive

       -U, --unlink-first
              remove each file prior to extracting over it

       -W, --verify
              attempt to verify the archive after writing it

Select output stream:
       --ignore-command-error ignore exit codes of children

              treat non-zero exit codes of children as error

       -O, --to-stdout
              extract files to standard output

              pipe extracted files to another program

              Handling of file attributes:

       --acls Save the ACLs to the archive

              preserve  access  times on dumped files, either by restoring the times after
              reading (METHOD='replace'; default) or by not setting the times in the first
              place (METHOD='system')

              delay  setting  modification  times and permissions of extracted directories
              until the end of extraction

              force NAME as group for added files

              force (symbolic) mode CHANGES for added files

              set mtime for added files from DATE-OR-FILE

       -m, --touch
              don't extract file modified time

              Don't extract the ACLs from the archive

              cancel the effect of --delay-directory-restore option

              extract files as yourself (default for ordinary users)

              apply the user's umask when extracting permissions from the archive (default
              for ordinary users)

              Don't extract the SELinux context from the archive

              Don't extract the user/root xattrs from the archive

              always use numbers for user/group names

              force NAME as owner for added files

       -p, --preserve-permissions, --same-permissions
              extract information about file permissions (default for superuser)

              same as both -p and -s

              try  extracting  files  with  the  same  ownership  as exists in the archive
              (default for superuser)

       -s, --preserve-order, --same-order
              sort names to extract to match archive

              Save the SELinux context to the archive

              Save the user/root xattrs to the archive

Device selection and switching:
       -f, --file=ARCHIVE
              use archive file or device ARCHIVE

              archive file is local even if it has a colon

       -F, --info-script=NAME, --new-volume-script=NAME
              run script at end of each tape (implies -M)

       -L, --tape-length=NUMBER
              change tape after writing NUMBER x 1024 bytes

       -M, --multi-volume
              create/list/extract multi-volume archive

              use given rmt COMMAND instead of rmt

              use remote COMMAND instead of rsh

              use/update the volume number in FILE

Device blocking:
       -b, --blocking-factor=BLOCKS
              BLOCKS x 512 bytes per record

       -B, --read-full-records
              reblock as we read (for 4.2BSD pipes)

       -i, --ignore-zeros
              ignore zeroed blocks in archive (means EOF)

              NUMBER of bytes per record, multiple of 512

Archive format selection:
       -H, --format=FORMAT
              create archive of the given format

              FORMAT is one of the following:

       gnu    GNU tar 1.13.x format

       oldgnu GNU format as per tar <= 1.12

       pax    POSIX 1003.1-2001 (pax) format

       posix  same as pax

       ustar  POSIX 1003.1-1988 (ustar) format

       v7     old V7 tar format

       --old-archive, --portability
              same as --format=v7

              control pax keywords

              same as --format=posix

       -V, --label=TEXT
              create archive with volume name TEXT; at list/extract time, use  TEXT  as  a
              globbing pattern for volume name

Compression options:
       -a, --auto-compress
              use archive suffix to determine the compression program

       -I, --use-compress-program=PROG
              filter through PROG (must accept -d)

       -j, --bzip2
              filter the archive through bzip2

       -J, --xz
              filter the archive through xz

       --lzip filter the archive through lzip

       --lzma filter the archive through lzma


              do not use archive suffix to determine the compression program

       -z, --gzip, --gunzip, --ungzip
              filter the archive through gzip

       -Z, --compress, --uncompress
              filter the archive through compress

Local file selection:
              add given FILE to the archive (useful if its name starts with a dash)

              backup before removal, choose version CONTROL

       -C, --directory=DIR
              change to directory DIR

              exclude files, given as a PATTERN

              exclude backup and lock files

              exclude  contents of directories containing CACHEDIR.TAG, except for the tag
              file itself

              exclude directories containing CACHEDIR.TAG

       --exclude-caches-under exclude everything under directories containing

              exclude contents of directories containing FILE, except for FILE itself

       --exclude-tag-all=FILE exclude directories containing FILE

              exclude everything under directories containing FILE

              exclude version control system directories

       -h, --dereference
              follow symlinks; archive and dump the files they point to

              follow hard links; archive and dump the files they refer to

       -K, --starting-file=MEMBER-NAME
              begin at member MEMBER-NAME in the archive

              compare date and time when data changed only

              disable the effect of the previous --null option

              avoid descending automatically in directories

              do not unquote filenames read with -T

       --null                 -T reads null-terminated names, disable -C

       -N, --newer=DATE-OR-FILE, --after-date=DATE-OR-FILE
              only store files newer than DATE-OR-FILE

              stay in local file system when creating archive

       -P, --absolute-names
              don't strip leading '/'s from file names

              recurse into directories (default)

              backup before removal, override usual suffix ('~' unless overridden by envi-
              ronment variable SIMPLE_BACKUP_SUFFIX)

       -T, --files-from=FILE
              get names to extract or create from FILE

              unquote filenames read with -T (default)

       -X, --exclude-from=FILE
              exclude patterns listed in FILE

File name transformations:
              strip NUMBER leading components from file names on extraction

       --transform=EXPRESSION, --xform=EXPRESSION
              use sed replace EXPRESSION to transform file names

              File name matching options (affect both exclude and include patterns):

              patterns match file name start

              ignore case

              patterns match after any '/' (default for exclusion)

              case sensitive matching (default)

              verbatim string matching

              wildcards do not match '/'

              use wildcards (default)

              wildcards match '/' (default for exclusion)

Informative output:
              display progress messages every NUMBERth record (default 10)

              execute ACTION on each checkpoint

              send verbose output to FILE

       -l, --check-links
              print a message if not all links are dumped

              disable quoting for characters from STRING

              additionally quote characters from STRING

              set name quoting style; see below for valid STYLE values

       -R, --block-number
              show block number within archive with each message

              show tar defaults

              when  listing  or extracting, list each directory that does not match search

       --show-transformed-names, --show-stored-names
              show file or archive names after transformation

              print total bytes after processing the archive; with  an  argument  -  print
              total  bytes  when  this  SIGNAL  is delivered; Allowed signals are: SIGHUP,
              SIGQUIT, SIGINT, SIGUSR1 and SIGUSR2; the names without SIG prefix are  also

       --utc  print file modification dates in UTC

       -v, --verbose
              verbosely list files processed

              warning control

       -w, --interactive, --confirmation
              ask for confirmation for every action

Compatibility options:
       -o     when   creating,   same   as   --old-archive;   when   extracting,  same  as

Other options:
       -?, --help
              give this help list

              disable use of some potentially harmful options

              give a short usage message

              print program version

       Mandatory or optional arguments to long options are also mandatory or optional  for
       any corresponding short options.

       The  backup  suffix  is '~', unless set with --suffix or SIMPLE_BACKUP_SUFFIX.  The
       version control may be set with --backup or VERSION_CONTROL, values are:

       none, off
              never make backups

       t, numbered
              make numbered backups

       nil, existing
              numbered if numbered backups exist, simple otherwise

       never, simple
              always make simple backups

       Valid arguments for the --quoting-style option are:

              literal shell shell-always c c-maybe escape locale clocale

       *This* tar defaults to: --format=gnu  -f-  -b20  --quoting-style=escape  --rmt-com-
       mand=/sbin/rmt --rsh-command=/usr/bin/rsh

       Written by John Gilmore and Jay Fenlason.

       Report bugs to <bug-tar AT gnu.org>.

       Copyright  (C) 2010 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3
       or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute  it.   There  is  NO
       WARRANTY, to the extent permitted by law.

tar 1.23                          March 2012                            TAR(1)

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