dpkg-split man page on Darwin

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dpkg-split(1)			dpkg utilities			 dpkg-split(1)

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

SYNOPSIS
       dpkg-split -s|--split complete-archive [prefix]
       dpkg-split -j|--join part part ...
       dpkg-split -I|--info part part ...
       dpkg-split -a|--auto -o complete-output part
       dpkg-split -l|--listq
       dpkg-split -d|--discard [package package ...]

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 reassem‐
       bles 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 mes‐
       sages on standard output; these may safely be ignored.

ACTION OPTIONS
       --split, -s
	      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 deci‐
	      mal).

	      If no prefix is supplied then the complete-archive  filename  is
	      taken, including directory, with any trailing .deb removed.

       --join, -j
	      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.deb.

       --info, -I
	      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 out‐
	      put).

       --auto, -a
	      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  com‐
	      plete-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-out‐
	      put 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.)

       --listq, -l
	      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.

       --discard, -d
	      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, -h
	      Prints dpkg-split's usage	 message,  giving  a  summary  of  its
	      options and their uses.

       --version
	      Prints dpkg-split's version number.

       --licence
	      Prints  information  about  dpkg-split's copyright licensing and
	      lack of warranty.	 (The American spelling --license is also sup‐
	      ported.)

OTHER OPTIONS
       --depotdir directory
	      Specifies an alternative directory for the queue of parts await‐
	      ing automatic reassembly.	 The default is /sw/var/lib/dpkg.

       --partsize|-S kbytes
	      Specifies the maximum part size  when  splitting,	 in  kilobytes
	      (1024 bytes).  The default is 450Kb.

       --output|-O 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).

       --npquiet, -Q
	      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 pack‐
	      ages 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	 file‐
	      names of the form prefixNofM.deb are generated.

EXIT STATUS
       An exit status of 0 indicates that the requested split, merge, or other
       command succeeded.  --info commands count as  successful	 even  if  the
       files are not binary package parts.

       An exit status of 1 occurs only with --auto and indicates that the part
       file was not a binary package part.

       An exit status of 2 indicates some kind of trouble, such	 as  a	system
       call  failure, a file that looked like a package part file but was cor‐
       rupted, a usage error or some other problem.

BUGS
       dpkg-split uses some rather out-of-date conventions for the  the	 file‐
       names of Debian packages.

       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	 pack‐
       age part is one.

       The  architecture is not represented in the part files' header, only in
       the control information of the contained binary package file, and it is
       not present in the filenames generated.

FILES
       /sw/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.

SEE ALSO
       deb(5), deb-control(5), dpkg-deb(1), dpkg(8)

AUTHOR
       dpkg-split and this manpage were written	 by  Ian  Jackson.   They  are
       Copyright  (C) 1995-1996 by him and released under the GNU General Pub‐
       lic Licence; there is NO WARRANTY.   See	 /sw/share/dpkg/copyright  and
       /sw/share/common-licenses/GPL  for  details.  Paths modified by Carsten
       Klapp to reflect fink distribution, December 2002.

Debian Project			23rd June 1996			 dpkg-split(1)
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