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In copy-out mode, cpio
copies files into an archive. It reads a
list of filenames, one per line, on the standard input, and writes the
archive onto the standard output. A typical way to generate the list of
filenames is with the find
command; you should give find the
`-depth' option to minimize problems with permissions on
directories that are unreadable. See section Options.
cpio {-o|--create} [-0acvABLV] [-C bytes] [-H format]
[-M message] [-O [[user@]host:]archive] [-F [[user@]host:]archive]
[--file=[[user@]host:]archive] [--format=format] [--sparse]
[--message=message][--null] [--reset-access-time] [--verbose]
[--dot] [--append] [--block-size=blocks] [--dereference]
[--io-size=bytes] [--help] [--version] < name-list [> archive]
In copy-in mode, cpio
copies files out of an archive or lists the
archive contents. It reads the archive from the standard input. Any
non-option command line arguments are shell globbing patterns; only
files in the archive whose names match one or more of those patterns are
copied from the archive. Unlike in the shell, an initial `.' in a
filename does match a wildcard at the start of a pattern, and a `/'
in a filename can match wildcards. If no patterns are given, all files
are extracted. See section Options.
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] [--help] [--version]
[-no-abosolute-filenames] [-only-verify-crc] [-quiet]
[pattern...] [< archive]
In copy-pass mode, cpio
copies files from one directory tree to
another, combining the copy-out and copy-in steps without actually
creating an archive. It reads the list of files to copy from the
standard input; the directory into which it will copy them is given as
a non-option argument.
See section Options.
cpio {-p|--pass-through} [-0adlmuvLV] [-R [user][:.][group]]
[--null] [--reset-access-time] [--make-directories] [--link]
[--preserve-modification-time] [--unconditional] [--verbose]
[--dot] [--dereference] [--owner=[user][:.][group]] [--sparse]
[--no-preserve-owner] [--help] [--version] destination-directory
< name-list
-0, --null
-
Read a list of filenames terminated by a null character, instead of a
newline, so that files whose names contain newlines can be archived.
GNU
find
is one way to produce a list of null-terminated
filenames. This option may be used in copy-out and copy-pass modes.
-a, --reset-access-time
-
Reset the access times of files after reading them, so
that it does not look like they have just been read. (This option has
no effect on plain DOS, since DOS filesystem only stores a single time
stamp per file. It does work on Windows 9X.)
-A, --append
-
Append to an existing archive. Only works in copy-out
mode. The archive must be a disk file specified with
the -O or -F (--file) option.
-b, --swap
-
Swap both halfwords of words and bytes of halfwords in the data.
Equivalent to -sS. This option may be used in copy-in mode. Use this
option to convert 32-bit integers between big-endian and little-endian
machines.
-B
-
Set the I/O block size to 5120 bytes. Initially the
block size is 512 bytes.
--block-size=block-size
-
Set the I/O block size to block-size * 512 bytes.
-c
-
Use the old portable (ASCII) archive format.
-C io-size, --io-size=io-size
-
Set the I/O block size to io-size bytes.
-d, --make-directories
-
Create leading directories where needed.
-E file, --pattern-file=file
-
Read additional patterns specifying filenames to extract or list from
file. The lines of file are treated as if they had been
non-option arguments to
cpio
. This option is used in copy-in
mode,
-f, --nonmatching
-
Only copy files that do not match any of the given
patterns.
-F, --file=archive
-
Archive filename to use instead of standard input or output. To use a
tape drive on another machine as the archive, use a filename that starts
with `HOSTNAME:'. The hostname can be preceded by a username and an
`@' to access the remote tape drive as that user, if you have
permission to do so (typically an entry in that user's `~/.rhosts'
file).
Remote archives are not supported on MS-DOS and MS-Windows.
--force-local
-
With -F, -I, or -O, take the archive file name to be a
local file even if it contains a colon, which would
ordinarily indicate a remote host name.
-H format, --format=format
-
Use archive format format. The valid formats are listed below;
the same names are also recognized in all-capital letters. The default
in copy-in mode is to automatically detect the archive format, and in
copy-out mode is `bin'.
- `bin'
-
The obsolete binary format.
- `odc'
-
The old (POSIX.1) portable format.
- `newc'
-
The new (SVR4) portable format, which supports file systems having more
than 65536 i-nodes.
- `crc'
-
The new (SVR4) portable format with a checksum added.
- `tar'
-
The old tar format.
- `ustar'
-
The POSIX.1 tar format. Also recognizes GNU tar archives, which are
similar but not identical.
- `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).
-i, --extract
-
Run in copy-in mode.
See section Copy-in mode.
-I archive
-
Archive filename to use instead of standard input. To use a tape drive
on another machine as the archive, use a filename that starts with
`HOSTNAME:'. The hostname can be preceded by a username and an `@' to
access the remote tape drive as that user, if you have permission to do
so (typically an entry in that user's `~/.rhosts' file).
Remote archives are not supported on MS-DOS and MS-Windows.
-k
-
Ignored; for compatibility with other versions of
cpio
.
-l, --link
-
Link files instead of copying them, when possible.
-L, --dereference
-
Copy the file that a symbolic link points to, rather than the symbolic
link itself.
-m, --preserve-modification-time
-
Retain previous file modification times when creating files.
-M message, --message=message
-
Print message when the end of a volume of the backup media (such
as a tape or a floppy disk) is reached, to prompt the user to insert a
new volume. If message contains the string "%d", it is replaced
by the current volume number (starting at 1).
-n, --numeric-uid-gid
-
Show numeric UID and GID instead of translating them into names when
using the `--verbose option'.
--no-absolute-filenames
-
Create all files relative to the current directory in copy-in mode, even
if they have an absolute file name in the archive.
--no-preserve-owner
-
Do not change the ownership of the files; leave them owned by the user
extracting them. This is the default for non-root users, so that users
on System V don't inadvertantly give away files. This option can be
used in copy-in mode and copy-pass mode
-o, --create
-
Run in copy-out mode.
See section Copy-out mode.
-O archive
-
Archive filename to use instead of standard output. To use a tape drive
on another machine as the archive, use a filename that starts with
`HOSTNAME:'. The hostname can be preceded by a username and an `@' to
access the remote tape drive as that user, if you have permission to do
so (typically an entry in that user's `~/.rhosts' file).
Remote archives are not supported on MS-DOS and MS-Windows.
--only-verify-crc
-
Verify the CRC's of each file in the archive, when reading a CRC format
archive. Don't actually extract the files.
-p, --pass-through
-
Run in copy-pass mode.
See section Copy-pass mode.
--quiet
-
Do not print the number of blocks copied.
-r, --rename
-
Interactively rename files. For each file in the archive,
cpio
will print its name and wait for the user to type a new name. An empty
name (produced by pressing RET) means skip the file.
--rename-batch-file=rename-file
-
Non-interactively rename files. For each file in the archive,
cpio
will read a replacement name from the named
rename-file. In that file, file names should be separated by
newlines. An empty line causes cpio
to skip the file.
-R [user][:.][group], --owner [user][:.][group]
-
Set the ownership of all files created to the specified user and/or
group in copy-in and copy-pass modes. Either the user, the group, or
both, must be present. If the group is omitted but the ":" or "."
separator is given, use the given user's login group. Only the
super-user can change files' ownership.
(On MS-DOS and MS-Windows, any user can use this option, since changing
ownership is a no-op on these systems.)
-s, --swap-bytes
-
Swap the bytes of each halfword (pair of bytes) in the files.This option
can be used in copy-in mode.
-S, --swap-halfwords
-
Swap the halfwords of each word (4 bytes) in the files. This option may
be used in copy-in mode.
--sparse
-
Write files with large blocks of zeros as sparse files. This option is
used in copy-out and copy-pass modes.
-t, --list
-
Print a table of contents of the input.
-u, --unconditional
-
Replace all files, without asking whether to replace
existing newer files with older files.
-v, --verbose
-
List the files processed, or with `-t', give an `ls -l' style
table of contents listing. In a verbose table of contents of a ustar
archive, user and group names in the archive that do not exist on the
local system are replaced by the names that correspond locally to the
numeric UID and GID stored in the archive.
-V --dot
-
Print a . for each file processed.
--version
-
Print the
cpio
program version number and exit.
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