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LUNZIP(1)                        User Commands                       LUNZIP(1)

       lunzip - decompressor for the lzip format

       lunzip [options] [files]

       Lunzip  is  a  decompressor for the lzip format. It is written in C and
       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  buf‐
       fer  with  the  '--buffer-size'  option  and lunzip will use the decom‐
       pressed file as dictionary for distances beyond  the  buffer  size.  Of
       course,  the smaller the buffer size used in relation to the dictionary
       size, the more accesses to disk are needed and the  slower  the  decom‐
       pression 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.

       -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>
              if reading standard input, write to <file>

       -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)

       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  inter‐
       preted as powers of two, meaning 2^12 to 2^29 bytes.

       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 (eg, bug) which
       caused lunzip to panic.

       Report bugs to
       Lunzip home page:

       Copyright © 2017 Antonio Diaz Diaz.  License GPLv2+: GNU GPL version  2
       or later <>
       This  is  free  software:  you  are free to change and redistribute it.
       There is NO WARRANTY, to the extent permitted by law.

lunzip 1.9                        April 2017                         LUNZIP(1)
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