инструмент разделения / объединения архива пакетов Debian (Debian package archive split/join tool)
Имя (Name)
dpkg-split - Debian package archive split/join tool
Синопсис (Synopsis)
dpkg-split [option...] command
Описание (Description)
dpkg-split splits Debian binary package files into smaller parts
and reassembles them again, to support the storage of large
package files on small media such as floppy disks.
It can be operated manually using the --split, --join and --info
options.
It also has an automatic mode, invoked using the --auto option,
where it maintains a queue of parts seen but not yet reassembled
and reassembles a package file when it has seen all of its parts.
The --listq and --discard options allow the management of the
queue.
All splitting, joining and queueing operations produce
informative messages on standard output; these may safely be
ignored.
Команды (Commands)
-s, --split complete-archive [prefix]
Splits a single Debian binary package into several parts.
The parts are named prefix.NofM.deb where N is the part
number, starting at 1, and M is the total number of parts
(both in decimal).
If no prefix is supplied then the complete-archive
filename is taken, including directory, with any trailing
.deb removed.
-j, --join part...
Joins the parts of a package file together, reassembling
the original file as it was before it was split.
The part files given as arguments must be all the parts of
exactly the same original binary file. Each part must
occur exactly once in the argument list, though the parts
to not need to be listed in order.
The parts must of course all have been generated with the
same part size specified at split time, which means that
they must usually have been generated by the same
invocation of dpkg-split --split.
The parts' filenames are not significant for the
reassembly process.
By default the output file is called
package_version_arch.deb.
-I, --info part...
Prints information, in a human-readable format, about the
part file(s) specified. Arguments which are not binary
package parts produce a message saying so instead (but
still on standard output).
-a, --auto -o complete-output part
Automatically queue parts and reassemble a package if
possible.
The part specified is examined, and compared with other
parts of the same package (if any) in the queue of
packages file parts.
If all parts of the package file of which part is a part
are available then the package is reassembled and written
to complete-output (which should not usually already
exist, though this is not an error).
If not then the part is copied into the queue and
complete-output is not created.
If part is not a split binary package part then dpkg-split
will exit with status 1; if some other trouble occurs then
it will exit with status 2.
The --output or -o option must be supplied when using
--auto. (If this were not mandatory the calling program
would not know what output file to expect.)
-l, --listq
Lists the contents of the queue of packages to be
reassembled.
For each package file of which parts are in the queue the
output gives the name of the package, the parts in the
queue, and the total number of bytes stored in the queue.
-d, --discard [package...]
This discards parts from the queue of those waiting for
the remaining parts of their packages.
If no package is specified then the queue is cleared
completely; if any are specified then only parts of the
relevant package(s) are deleted.
-?, --help
Show the usage message and exit.
--version
Show the version and exit.
Параметры (Options)
--depotdir directory
Specifies an alternative directory for the queue of parts
awaiting automatic reassembly. The default is
/usr/local/var/lib/dpkg.
-S, --partsize kibibytes
Specifies the maximum part size when splitting, in
kibibytes (1024 bytes). The default is 450 KiB.
-o, --output complete-output
Specifies the output file name for a reassembly.
This overrides the default for a manual reassembly
(--join) and is mandatory for an automatic queue-or-
reassemble (--auto).
-Q, --npquiet
When doing automatic queue-or-reassembly dpkg-split
usually prints a message if it is given a part that is not
a binary package part. This option suppresses this
message, to allow programs such as dpkg to cope with both
split and unsplit packages without producing spurious
messages.
--msdos
Forces the output filenames generated by --split to be
msdos-compatible.
This mangles the prefix - either the default derived from
the input filename or the one supplied as an argument:
alphanumerics are lowercased, plus signs are replaced by
x's and all other characters are discarded.
The result is then truncated as much as is necessary, and
filenames of the form prefixNofM.deb are generated.
Статус выхода (Exit)
0 The requested split, merge, or other command succeeded.
--info commands count as successful even if the files are
not binary package parts.
1 Only occurs with --auto and indicates that the part file
was not a binary package part.
2 Fatal or unrecoverable error due to invalid command-line
usage, a file that looked like a package part file but was
corrupted, or interactions with the system, such as
accesses to the database, memory allocations, etc.
Окружение (Environment)
DPKG_COLORS
Sets the color mode (since dpkg 1.18.5). The currently
accepted values are: auto (default), always and never.
SOURCE_DATE_EPOCH
If set, it will be used as the timestamp (as seconds since
the epoch) in the deb-split(5)'s ar(5) container.
Файлы (Files)
/usr/local/var/lib/dpkg/parts
The default queue directory for part files awaiting
automatic reassembly.
The filenames used in this directory are in a format
internal to dpkg-split and are unlikely to be useful to
other programs, and in any case the filename format should
not be relied upon.
Ошибки (баги) (Bugs)
Full details of the packages in the queue are impossible to get
without digging into the queue directory yourself.
There is no easy way to test whether a file that may be a binary
package part is one.
Смотри также (See also)
deb(5), deb-control(5), dpkg-deb(1), dpkg(1).
