cpio - copy files to and from archives
cpio {-o|--create} [-0acvABLV]
[-C BYTES] [-H FORMAT] [-M
MESSAGE] [-O
[[USER@]HOST:]ARCHIVE] [-F
[[USER@]HOST:]ARCHIVE]
[--file=[[USER@]HOST:]ARCHIVE]
[--format=FORMAT] [--message=MESSAGE]
[--null] [--reset-access-time] [--verbose]
[--dot] [--append] [--block-size=blocks]
[--dereference] [--io-size=BYTES] [--quiet]
[--force-local] [--rsh-command=COMMAND] <
name-list [> archive]
cpio {-i|--extract} [-bcdfmnrtsuvBSV]
[-C BYTES] [-E FILE] [-H FORMAT]
[-M MESSAGE] [-R
[USER][:.][GROUP]] [-I
[[USER@]HOST:]ARCHIVE] [-F
[[USER@]HOST:]ARCHIVE]
[--file=[[USER@]HOST:]ARCHIVE]
[--make-directories] [--nonmatching]
[--preserve-modification-time] [--numeric-uid-gid]
[--rename] [--list] [--swap-bytes] [--swap]
[--dot] [--unconditional] [--verbose]
[--block-size=BLOCKS] [--swap-halfwords]
[--io-size=BYTES] [--pattern-file=FILE]
[--format=FORMAT]
[--owner=[USER][:.][GROUP]]
[--no-preserve-owner] [--message=MESSAGE]
[--force-local] [--no-absolute-filenames] [--sparse]
[--only-verify-crc] [--to-stdout] [--quiet]
[--rsh-command=COMMAND] [pattern...] [<
archive]
cpio {-p|--pass-through} [-0adlmuvLV]
[-R [USER][:.][GROUP]] [--null]
[--reset-access-time] [--make-directories] [--link]
[--quiet] [--preserve-modification-time]
[--unconditional] [--verbose] [--dot]
[--dereference]
[--owner=[USER][:.][GROUP]]
[--no-preserve-owner] [--sparse] destination-directory
< name-list
cpio
{-?|--help|--usage|--version}
REPORTING BUGS
Report cpio bugs to bug-cpio@gnu.org
GNU cpio home page: <http://www.gnu.org/software/cpio/>
General help using GNU software:
<http://www.gnu.org/gethelp/>
Report cpio translation bugs to
<http://translationproject.org/team/>
GNU cpio copies files between archives and directories. It
supports the following archive formats: old binary cpio, old portable cpio,
SVR4 cpio with and without checksum, HP cpio, and various tar formats.
The operation mode is requested by one of the following
options:
- -o, --create
- Copy-out. Read a list of file names from the standard input and create on
the standard output (unless overridden by the --file option) an
archive containing these files.
- -i, --extract
- Copy-in. Read the archive from standard input (or from the file supplied
with the --file option) and extract files from it, or (if the
-t option is given) list its contents to the standard output. If
one or more patterns are supplied, read or list only files matching
these patterns. The -t option alone implies -i.
- -p,
--pass-through
- Pass-through. Read a list of file names from the standard input and copy
them to the specified directory.
- -?, --help
- Give a short help summary and exit.
- --usage
- Print a short usage message and exit.
- --version
- Print program version and exit.
REPORTING BUGS
Report cpio bugs to bug-cpio@gnu.org
GNU cpio home page: <http://www.gnu.org/software/cpio/>
General help using GNU software:
<http://www.gnu.org/gethelp/>
Report cpio translation bugs to
<http://translationproject.org/team/>
- --block-size=BLOCK-SIZE
- Set the I/O block size to BLOCK-SIZE * 512 bytes.
- -B
- Set the I/O block size to 5120 bytes.
- -c
- Use the old portable (ASCII) archive format. This is the same as -H
odc.
- -C,
--io-size=NUMBER
- Set the I/O block size to the given NUMBER of bytes.
- -D,
--directory=DIR
- Change to directory DIR.
- --force-local
- Archive file is local, even if its name contains colons.
- -H,
--format=FORMAT
- Use given archive FORMAT. Valid formats are (the number in
parentheses gives maximum size for individual archive member):
- bin
- The obsolete binary format. (2147483647 bytes)
- odc
- The old (POSIX.1) portable format. (8589934591 bytes)
- newc
- The new (SVR4) portable format, which supports file systems having more
than 65536 i-nodes. (4294967295 bytes)
- crc
- The new (SVR4) portable format with a checksum added.
- tar
- The old tar format. (8589934591 bytes)
- ustar
- The POSIX.1 tar format. Also recognizes GNU tar archives, which are
similar but not identical. (8589934591 bytes)
- hpbin
- The obsolete binary format used by HPUX's cpio (which stores device files
differently).
- hpodc
- The portable format used by HPUX's cpio (which stores device files
differently).
- -R,
--owner=[USER][:.][GROUP]
- In copy-in and copy-pass mode, set the ownership of all files created to
the specified USER and/or GROUP. In copy-out mode, store the
supplied owner information in the archive.
USER and GROUP are first looked up in the system
user and group databases. If not found, cpio checks if they
consist of decimal digits only and, if so, treats them as numeric UID
and GID, correspondingly.
To avoid the lookup and ensure that arguments are treated as
numeric values, prefix them with a plus sign, e.g.: -R +0:+0.
- --quiet
- Do not print the number of blocks copied at the end of the run.
- --rsh-command=COMMAND
- Use remote COMMAND instead of rsh.
- -v, --verbose
- Verbosely list the files processed.
- -V, --dot
- Print a "." for each file processed.
- -W,
--warning=FLAG
- Controlsи warning display. The FLAG is one of none,
to disable all warnings, all to enable them, truncate, to
enable warnings about field truncation, and no-truncate, to disable
them.
Multiple -W options accumulate.
Operation modifiers valid in copy-in and copy-out modes
- -F,
--file=[[USER@]HOST:]ARCHIVE-FILE
- Use this ARCHIVE-FILE instead of standard input (in copy-in mode)
or standard output (in copy-out mode). Optional USER and
HOST specify the user and host names in case of a remote
archive.
- -M,
--message=STRING
- Print STRING when the end of a volume of the backup media is
reached.
- -b, --swap
- Swap both halfwords of words and bytes of halfwords in the data.
Equivalent to -sS.
- -f,
--nonmatching
- Only copy files that do not match any of the given patterns.
- -n,
--numeric-uid-gid
- In the verbose table of contents listing, show numeric UID and GID.
- -r, --rename
- Interactively rename files.
- -s,
--swap-bytes
- Swap the bytes of each halfword in the files.
- -S,
--swap-halfwords
- Swap the halfwords of each word (4 bytes) in the files.
- --to-stdout
- Extract files to standard output.
- -E,
--pattern-file=FILE
- Read additional patterns specifying filenames to extract or list from
FILE.
- --only-verify-crc
- When reading a CRC format archive, only verify the CRC's of each file in
the archive, without actually extracting the files.
- -A, --append
- Append to an existing archive.
- --device-independent,
--reproducible
- Create reproducible archives. This is equivalent to --ignore-devno
--renumber-inodes.
- --ignore-devno
- Store 0 in the device number field of each archive member, instead of the
actual device number.
- -O
[[USER@]HOST:]ARCHIVE-NAME
- Use ARCHIVE-NAME instead of standard output. Optional USER
and HOST specify the user and host names in case of a remote
archive.
The output archive name can be specified wither using this
option, or using -F (--file), but not both.
- --renumber-inodes
- Renumber inodes when storing them in the archive.
- -l, --link
- Link files instead of copying them, when possible.
Operation modifiers valid in copy-in and copy-out modes
- --absolute-filenames
- Do not strip file system prefix components from the file names. This is
the default.
- --no-absolute-filenames
- Create all files relative to the current directory.
- -0, --null
- Filenames in the list are delimited by null characters instead of
newlines.
- -a,
--reset-access-time
- Reset the access times of files after reading them.
- -I
[[USER@]HOST:]ARCHIVE-NAME
- Use ARCHIVE-NAME instead of standard input. Optional USER
and HOST specify the user and host names in case of a remote
archive.
The input archive name can be specified wither using this
option, or using -F (--file), but not both.
- -L,
--dereference
- Dereference symbolic links (copy the files that they point to instead of
copying the links).
GNU cpio exits with code 0 if it was able to
successfully complete the requested operation. On errors, it exits with code
2.
Report bugs to <bug-cpio@gnu.org>.
Copyright © 2014 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.