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 LZIP(1)                          lzip 1.22                          LZIP(1)
 User Commands                                                 User Commands

                                January 2021



 NAME
      lzip - reduces the size of files

 SYNOPSIS
      lzip [,options/] [,files/]

 DESCRIPTION
      Lzip is a lossless data compressor with a user interface similar to
      the one of gzip or bzip2. Lzip uses a simplified form of the
      'Lempel-Ziv-Markov chain-Algorithm' (LZMA) stream format, chosen to
      maximize safety and interoperability. Lzip can compress about as fast
      as gzip (lzip -0) or compress most files more than bzip2 (lzip -9).
      Decompression speed is intermediate between gzip and bzip2. Lzip is
      better than gzip and bzip2 from a data recovery perspective. Lzip has
      been designed, written, and tested with great care to replace gzip and
      bzip2 as the standard general-purpose compressed format for unix-like
      systems.

 OPTIONS
      -h, --help
           display this help and exit

      -V, --version
           output version information and exit

      -a, --trailing-error
           exit with error status if trailing data

      -b, --member-size=<bytes>
           set member size limit in bytes

      -c, --stdout
           write to standard output, keep input files

      -d, --decompress
           decompress

      -f, --force
           overwrite existing output files

      -F, --recompress
           force re-compression of compressed files

      -k, --keep
           keep (don't delete) input files

      -l, --list
           print (un)compressed file sizes




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 LZIP(1)                          lzip 1.22                          LZIP(1)
 User Commands                                                 User Commands

                                January 2021



      -m, --match-length=<bytes>
           set match length limit in bytes [36]

      -o, --output=<file>
           write to <file>, keep input files

      -q, --quiet
           suppress all messages

      -s, --dictionary-size=<bytes>
           set dictionary size limit in bytes [8 MiB]

      -S, --volume-size=<bytes>
           set volume size limit in bytes

      -t, --test
           test compressed file integrity

      -v, --verbose
           be verbose (a 2nd -v gives more)

      -0 .. -9
           set compression level [default 6]

      --fast
           alias for -0

      --best
           alias for -9

      --loose-trailing
           allow trailing data seeming corrupt header

      If no file names are given, or if a file is '-', lzip compresses or
      decompresses from standard input to standard output.  Numbers may be
      followed by a multiplier: k = kB = 10^3 = 1000, Ki = KiB = 2^10 =
      1024, M = 10^6, Mi = 2^20, G = 10^9, Gi = 2^30, etc...  Dictionary
      sizes 12 to 29 are interpreted as powers of two, meaning 2^12 to 2^29
      bytes.

      The bidimensional parameter space of LZMA can't be mapped to a linear
      scale optimal for all files. If your files are large, very repetitive,
      etc, you may need to use the options --dictionary-size and
      --match-length directly to achieve optimal performance.

      To extract all the files from archive 'foo.tar.lz', use the commands
      'tar -xf foo.tar.lz' or 'lzip -cd foo.tar.lz | tar -xf -'.

      Exit status: 0 for a normal exit, 1 for environmental problems (file



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 LZIP(1)                          lzip 1.22                          LZIP(1)
 User Commands                                                 User Commands

                                January 2021



      not found, invalid flags, I/O errors, etc), 2 to indicate a corrupt or
      invalid input file, 3 for an internal consistency error (eg, bug)
      which caused lzip to panic.

      The ideas embodied in lzip are due to (at least) the following people:
      Abraham Lempel and Jacob Ziv (for the LZ algorithm), Andrey Markov
      (for the definition of Markov chains), G.N.N. Martin (for the
      definition of range encoding), Igor Pavlov (for putting all the above
      together in LZMA), and Julian Seward (for bzip2's CLI).

 REPORTING BUGS
      Report bugs to lzip-bug@nongnu.org
      Lzip home page: http://www.nongnu.org/lzip/lzip.html

 COPYRIGHT
      Copyright c 2021 Antonio Diaz Diaz.  License GPLv2+: GNU GPL version 2
      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.

 SEE ALSO
      The full documentation for lzip is maintained as a Texinfo manual.  If
      the info and lzip programs are properly installed at your site, the
      command

           info lzip

      should give you access to the complete manual.
























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