NAME

       lunzip - decompressor for the lzip format

SYNOPSIS

       lunzip [options] [files]

DESCRIPTION

       Lunzip  is  a  decompressor  for  the  lzip  format written in C. Its small size makes it well suited for
       embedded devices or software installers  that  need  to  decompress  files  but  don't  need  compression
       capabilities. Lunzip is fully compatible with lzip 1.4 or newer.

       Lunzip  provides  a  'low  memory'  mode  able  to  decompress  any file using as little memory as 50 kB,
       irrespective of the dictionary size used to compress the file. To activate it, specify the  size  of  the
       output  buffer  with the option --buffer-size and lunzip will use the decompressed file as dictionary for
       distances beyond the buffer size. Of course, the larger the difference between the buffer  size  and  the
       dictionary  size,  the  more  accesses to disk are needed and the slower the decompression is.  This 'low
       memory' mode only works when decompressing to a regular file and is intended for systems  without  enough
       memory (RAM + swap) to keep the whole dictionary at once.

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

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

       -d, --decompress
              decompress (this is the default)

       -f, --force
              overwrite existing output files

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

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

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

       -q, --quiet
              suppress all messages

       -t, --test
              test compressed file integrity

       -u, --buffer-size=<bytes>
              set output buffer size in bytes

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

       --loose-trailing
              allow trailing data seeming corrupt header

       If  no  file  names  are  given, or if a file is '-', lunzip 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...  Buffer sizes 12 to 29 are interpreted as powers of two, meaning
       2^12 to 2^29 bytes.

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

       Exit  status:  0  for  a  normal  exit,  1 for environmental problems (file not found, invalid flags, I/O
       errors, etc), 2 to indicate a corrupt or invalid input file, 3 for an internal consistency  error  (e.g.,
       bug) which caused lunzip to panic.

       The  ideas  embodied  in  lunzip 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
       Lunzip home page: http://www.nongnu.org/lzip/lunzip.html

COPYRIGHT

       Copyright   ©   2022   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.