Provided by: plzip_1.12-1_amd64 
NAME
plzip - reduces the size of files
SYNOPSIS
plzip [options] [files]
DESCRIPTION
Plzip is a massively parallel (multi-threaded) implementation of lzip. Plzip uses the compression library
lzlib.
Lzip is a lossless data compressor with a user interface similar to the one of gzip or bzip2. Lzip uses a
simplified form of LZMA (Lempel-Ziv-Markov chain-Algorithm) designed to achieve complete interoperability
between implementations. The maximum dictionary size is 512 MiB so that any lzip file can be decompressed
on 32-bit machines. Lzip provides accurate and robust 3-factor integrity checking. 'lzip -0' compresses
about as fast as gzip, while 'lzip -9' compresses most files more than bzip2. Decompression speed is
intermediate between gzip and bzip2. Lzip provides better data recovery capabilities than gzip and bzip2.
Lzip has been designed, written, and tested with great care to replace gzip and bzip2 as 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 smaller than 1 MiB plzip is no faster than lzip (not even at compression level
-0). The number of threads defaults to the number of processors.
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, --data-size=<bytes>
set size of input data blocks [2x8=16 MiB]
-c, --stdout
write to standard output, keep input files
-d, --decompress
decompress, test compressed file integrity
-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>
write to <file>, keep input files
-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
--loose-trailing
allow trailing data seeming corrupt header
--in-slots=<n>
number of 1 MiB input packets buffered [4]
--out-slots=<n>
number of 1 MiB output packets buffered [64]
--check-lib
compare version of lzlib.h with liblz.{a,so}
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 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 'plzip -cd
foo.tar.lz | tar -xf -'.
Exit status: 0 for a normal exit, 1 for environmental problems (file not found, invalid command-line
options, I/O errors, etc), 2 to indicate a corrupt or invalid input file, 3 for an internal consistency
error (e.g., bug) which caused plzip to panic.
REPORTING BUGS
Report bugs to lzip-bug@nongnu.org Plzip home page: http://www.nongnu.org/lzip/plzip.html
COPYRIGHT
Copyright © 2009 Laszlo Ersek.
Copyright © 2025 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. Using lzlib 1.15 Using LZ_API_VERSION = 1015
SEE ALSO
The full documentation for plzip is maintained as a Texinfo manual. If the info and plzip programs are
properly installed at your site, the command
info plzip
should give you access to the complete manual.