dpkg-split(1)                                     dpkg suite                                    dpkg-split(1)

NAME
       dpkg-split - Debian package archive split/join tool

SYNOPSIS
       dpkg-split [option...] command

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.

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.

OPTIONS
       --depotdir directory
              Specifies  an  alternative  directory for the queue of parts awaiting automatic reassembly. The
              default is /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.

EXIT STATUS
       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.

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.

FILES
       /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.

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.

SEE ALSO
       deb(5), deb-control(5), dpkg-deb(1), dpkg(1).

1.19.7                                            2019-06-03                                    dpkg-split(1)

Használat: dpkg-split [<opció> ...] <parancs>

Parancsok:
  -s|--split <fájl> [<előtag>]     Archívum szétvágása.
  -j|--join <rész> <rész> ...      Részek összerakása.
  -I|--info <rész> ...             Egy rész adatainak kiírása.
  -a|--auto -o <teljes> <rész>    Részek automata összehozása.
  -l|--listq                       Nem illő elemek listája.
  -d|--discard [<fájlnév> ...]    Nem illő elemek elvetése.

  -?, --help                       Show this help message.
      --version                    Show the version.

Options:
  --depotdir <directory>           Use <directory> instead of /var/lib/dpkg/parts.
  -S|--partsize <size>             In KiB, for -s (default is 450).
  -o|--output <file>               Filename, for -j (default is
                                     <package>_<version>_<arch>.deb).
  -Q|--npquiet                     Be quiet when -a is not a part.
  --msdos                          Generate 8.3 filenames.

Exit status:
  0 = ok
  1 = with --auto, file is not a part
  2 = trouble