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LZIP

Section: User Commands (1)
Updated: May 2016
Index Return to Main Contents
 

NAME

lzip - reduces the size of files  

SYNOPSIS

lzip [,options/] [,files/]  

DESCRIPTION

Lzip - LZMA lossless data compressor.  

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 in bytes
-c, --stdout
write to standard output, keep input files
-d, --decompress
decompress
-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>
if reading standard input, write to <file>
-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

If no file names are given, or if a file is '-', lzip 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 options 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 lzip to panic.  

REPORTING BUGS

Report bugs to lzip-bug@nongnu.org
Lzip home page: http://www.nongnu.org/lzip/lzip.html  

COPYRIGHT

Copyright © 2016 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.  

SEE ALSO

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

should give you access to the complete manual.


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
REPORTING BUGS
COPYRIGHT
SEE ALSO


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