Man page - lzip.minilzip(1)

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Package: minilzip
apt-get install minilzip

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minilzip

Manual

MINILZIP

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
REPORTING BUGS
COPYRIGHT
SEE ALSO

NAME

minilzip - reduces the size of files

SYNOPSIS

minilzip [ options ] [ files ]

DESCRIPTION

Minilzip is a test program for the compression library lzlib. Minilzip is not intended to be installed because lzip has more features, but minilzip is well tested and you can use it as your main compressor if so you wish.

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.

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 of multimember files

-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

-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

--check-lib

compare version of lzlib.h with liblz.{a,so}

If no file names are given, or if a file is ’-’, minilzip compresses or decompresses from standard input to standard output. Numbers may be followed by a multiplier: k = kB = 10ˆ3 = 1000, Ki = KiB = 2ˆ10 = 1024, M = 10ˆ6, Mi = 2ˆ20, G = 10ˆ9, Gi = 2ˆ30, etc... Dictionary sizes 12 to 29 are interpreted as powers of two, meaning 2ˆ12 to 2ˆ29 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 ’minilzip -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 minilzip to panic.

The ideas embodied in lzlib are due to (at least) the following people: Abraham Lempel and Jacob Ziv (for the LZ algorithm), Andrei 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
Lzlib home page: http://www.nongnu.org/lzip/lzlib.html

COPYRIGHT

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