Content-type: text/html Manpage of TAR

TAR

Section: User Commands (1)
Updated: February 2005
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NAME

A tar (tape archiver) program.  

SYNOPSIS

tar [OPTION...] [FILE]...  

DESCRIPTION

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

EXAMPLES

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
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
-u, --update
only append files newer than copy in archive
-x, --extract, --get
extract files from an archive
Operation modifiers:
-g, --listed-incremental=FILE
handle new GNU-format incremental backup
-G, --incremental
handle old GNU-format incremental backup
--ignore-failed-read
do not exit with nonzero on unreadable files
-k, --keep-old-files
don't replace existing files when extracting
--keep-newer-files
don't replace existing files that are newer than their archive copies
--no-overwrite-dir
preserve metadata of existing directories
-n, --seek
Archive is seekable
--occurrence[=NUMBER]
process only the NUMth 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 -T option. NUMBER defaults to 1.
--overwrite
overwrite existing files when extracting
-O, --to-stdout
extract files to standard output
--recursive-unlink
empty hierarchies prior to extracting directory
--remove-files
remove files after adding them to the archive
-S, --sparse
handle sparse files efficiently
-U, --unlink-first
remove each file prior to extracting over it
-W, --verify
attempt to verify the archive after writing it
Handling of file attributes:
--atime-preserve
don't change access times on dumped files
--group=NAME
force NAME as group for added files
--mode=CHANGES
force (symbolic) mode CHANGES for added files
-m, --touch
don't extract file modified time
--no-same-owner
extract files as yourself
--no-same-permissions
do not extract permissions information
--numeric-owner
always use numbers for user/group names
--owner=NAME
force NAME as owner for added files
-p, --preserve-permissions, --same-permissions
extract permissions information
--preserve
same as both -p and -s
--same-owner
try extracting files with the same ownership
-s, --preserve-order, --same-order
sort names to extract to match archive
Device selection and switching:
-f, --file=ARCHIVE
use archive file or device ARCHIVE
--force-local
archive file is local even if 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
--rmt-command=COMMAND
use given rmt COMMAND instead of rmt
--rsh-command=COMMAND
use remote COMMAND instead of rsh
--volno-file=FILE
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)
--record-size=NUMBER
SIZE 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
-j, --bzip2
filter the archive through bzip2
--old-archive, --portability
same as --format=v7
--pax-option=keyword[[:]=value][,keyword[[:]=value], ...]
control pax keywords
--posix
same as --format=posix
--use-compress-program=PROG
filter through PROG (must accept -d)
-V, --label=TEXT
create archive with volume name NAME. At list/extract time, use TEXT as a globbing pattern
-z, --gzip, --gunzip, --ungzip
filter the archive through gzip
-Z, --compress, --uncompress
filter the archive through compress
Local file selection:
--after-date=DATE
same as -N
--anchored
exclude patterns match file name start
--backup[=CONTROL]
backup before removal, choose version CONTROL
-C, --directory=DIR
change to directory DIR
--exclude=PATTERN
exclude files, given as a PATTERN
--exclude-caches
exclude directories containing a cache tag
-h, --dereference
dump instead the files symlinks point to
--ignore-case
exclusion ignores case
-K, --starting-file=MEMBER-NAME
begin at member MEMBER-NAME in the archive
--newer-mtime=DATE
compare date and time when data changed only
--no-anchored
exclude patterns match after any / (default)
--no-ignore-case
exclusion is case sensitive (default)
--no-recursion
avoid descending automatically in directories
--no-wildcards
exclude patterns are plain strings
--no-wildcards-match-slash
exclude pattern wildcards do not match '/'
--null -T reads null-terminated names, disable -C
-N, --newer=DATE-OR-FILE
only store files newer than DATE-OR-FILE
--one-file-system
stay in local file system when creating archive
-P, --absolute-names
don't strip leading `/'s from file names
--recursion
recurse into directories (default)
--strip-components=NUMBER
strip NUMBER leading components from file names
--suffix=STRING
backup before removal, override usual suffix ('~' unless overridden by environment variable SIMPLE_BACKUP_SUFFIX
-T, --files-from=FILE-OF-NAMES
get names to extract or create from file NAME
--wildcards
exclude patterns use wildcards (default)
--wildcards-match-slash
exclude pattern wildcards match '/' (default)
-X, --exclude-from=FILE
exclude patterns listed in FILE
Informative output:
--checkpoint
display progress messages every 10th record
-v, --verbose
verbosely list files processed
--check-links
print a message if not all links are dumped
--index-file=FILE
send verbose output to FILE
-R, --block-number
show block number within archive with each message
--show-defaults
Show tar defaults
--show-omitted-dirs
When listing or extracting, list each directory that does not match search criteria
--totals
print total bytes written while creating archive
--utc
print file modification dates in UTC
-w, --interactive, --confirmation
ask for confirmation for every action
Compatibility options:
-o
when creating, same as --old-archive. When extracting, same as --no-same-owner
Other options:
-?, --help
Give this help list
--license
Print license and exit
--usage
Give a short usage message
--version
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:

t, numbered
make numbered backups
nil, existing
numbered if numbered backups exist, simple otherwise
never, simple
always make simple backups

*This* tar defaults to: --format=gnu -f- -b20 --rmt-command=/sbin/rmt --rsh-command=/usr/bin/rsh  

REPORTING BUGS

Report bugs to <bug-tar@gnu.org>.  

SEE ALSO

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.


 

Index

NAME
SYNOPSIS
DESCRIPTION
EXAMPLES
REPORTING BUGS
SEE ALSO

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Time: 00:35:37 GMT, August 11, 2010