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PLZIP(1)			 User Commands			      PLZIP(1)

       plzip - reduces the size	of files

       plzip [options] [files]

       Plzip  is a massively parallel (multi-threaded) implementation of lzip,
       fully compatible	with lzip 1.4 or newer.	Plzip uses the lzlib  compres-
       sion library.

       Lzip is a lossless data compressor with a user interface	similar	to the
       one of gzip or bzip2. 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.

       Plzip  can  compress/decompress	large files on multiprocessor machines
       much faster than	lzip, at the cost of a	slightly  reduced  compression
       ratio  (0.4 to 2	percent	larger compressed files). Note that the	number
       of usable threads is limited by file size; on files larger than	a  few
       GB  plzip can use hundreds of processors, but on	files of only a	few MB
       plzip is	no faster than lzip.

       -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, --data-size=<bytes>
	      set size of input	data blocks [2x8=16 MiB]

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

       -d, --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

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

       -n, --threads=<n>
	      set number of (de)compression threads [2]

       -o, --output=<file>
	      if reading standard input, write to <file>

       -q, --quiet
	      suppress all messages

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

       -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

	      allow trailing data seeming corrupt header

	      number of	1 MiB input packets buffered [4]

	      number of	1 MiB output packets buffered [64]

       If no file names	are given, or if a file	is '-',	 plzip	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 --dictionary-size and  --match-length  op-
       tions directly to achieve optimal performance.

       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 plzip to panic.

       Report bugs to
       Plzip home page:

       Copyright (C) 2009 Laszlo Ersek.
       Copyright (C) 2019 Antonio Diaz Diaz.  Using lzlib 1.11 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.

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

	      info plzip

       should give you access to the complete manual.

plzip 1.8			 January 2019			      PLZIP(1)


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