1LZIP(1)                          User Commands                         LZIP(1)
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3
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NAME

6       lzip - reduces the size of files
7

SYNOPSIS

9       lzip [options] [files]
10

DESCRIPTION

12       Lzip is a lossless data compressor with a user interface similar to the
13       one of gzip or  bzip2.  Lzip  uses  a  simplified  form  of  the  'Lem‐
14       pel-Ziv-Markov  chain-Algorithm'  (LZMA) stream format and provides a 3
15       factor integrity checking to  maximize  interoperability  and  optimize
16       safety.  Lzip  can compress about as fast as gzip (lzip -0) or compress
17       most files more than bzip2 (lzip -9). Decompression speed is intermedi‐
18       ate  between gzip and bzip2.  Lzip is better than gzip and bzip2 from a
19       data recovery perspective. Lzip has been designed, written, and  tested
20       with  great care to replace gzip and bzip2 as the standard general-pur‐
21       pose compressed format for unix-like systems.
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OPTIONS

24       -h, --help
25              display this help and exit
26
27       -V, --version
28              output version information and exit
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30       -a, --trailing-error
31              exit with error status if trailing data
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33       -b, --member-size=<bytes>
34              set member size limit in bytes
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36       -c, --stdout
37              write to standard output, keep input files
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39       -d, --decompress
40              decompress
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42       -f, --force
43              overwrite existing output files
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45       -F, --recompress
46              force re-compression of compressed files
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48       -k, --keep
49              keep (don't delete) input files
50
51       -l, --list
52              print (un)compressed file sizes
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54       -m, --match-length=<bytes>
55              set match length limit in bytes [36]
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57       -o, --output=<file>
58              write to <file>, keep input files
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60       -q, --quiet
61              suppress all messages
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63       -s, --dictionary-size=<bytes>
64              set dictionary size limit in bytes [8 MiB]
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66       -S, --volume-size=<bytes>
67              set volume size limit in bytes
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69       -t, --test
70              test compressed file integrity
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72       -v, --verbose
73              be verbose (a 2nd -v gives more)
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75       -0 .. -9
76              set compression level [default 6]
77
78       --fast alias for -0
79
80       --best alias for -9
81
82       --loose-trailing
83              allow trailing data seeming corrupt header
84
85       If no file names are given, or if a file is '-', lzip compresses or de‐
86       compresses from standard input to standard output.  Numbers may be fol‐
87       lowed by a multiplier: k = kB = 10^3 = 1000, Ki = KiB = 2^10 = 1024,  M
88       =  10^6, Mi = 2^20, G = 10^9, Gi = 2^30, etc...  Dictionary sizes 12 to
89       29 are interpreted as powers of two, meaning 2^12 to 2^29 bytes.
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91       The bidimensional parameter space of LZMA can't be mapped to  a  linear
92       scale  optimal for all files. If your files are large, very repetitive,
93       etc,  you  may  need  to  use   the   options   --dictionary-size   and
94       --match-length directly to achieve optimal performance.
95
96       To  extract  all  the files from archive 'foo.tar.lz', use the commands
97       'tar -xf foo.tar.lz' or 'lzip -cd foo.tar.lz | tar -xf -'.
98
99       Exit status: 0 for a normal exit, 1 for  environmental  problems  (file
100       not  found, invalid flags, I/O errors, etc), 2 to indicate a corrupt or
101       invalid input file, 3 for an internal  consistency  error  (e.g.,  bug)
102       which caused lzip to panic.
103
104       The  ideas embodied in lzip are due to (at least) the following people:
105       Abraham Lempel and Jacob Ziv (for the LZ algorithm), Andrey Markov (for
106       the  definition of Markov chains), G.N.N. Martin (for the definition of
107       range encoding), Igor Pavlov (for putting all  the  above  together  in
108       LZMA), and Julian Seward (for bzip2's CLI).
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REPORTING BUGS

111       Report bugs to lzip-bug@nongnu.org
112       Lzip home page: http://www.nongnu.org/lzip/lzip.html
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115       Copyright  © 2022 Antonio Diaz Diaz.  License GPLv2+: GNU GPL version 2
116       or later <http://gnu.org/licenses/gpl.html>
117       This is free software: you are free  to  change  and  redistribute  it.
118       There is NO WARRANTY, to the extent permitted by law.
119

SEE ALSO

121       The  full documentation for lzip is maintained as a Texinfo manual.  If
122       the info and lzip programs are properly installed  at  your  site,  the
123       command
124
125              info lzip
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127       should give you access to the complete manual.
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131lzip 1.23                        January 2022                          LZIP(1)
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