NAME¶
lunzip - decompressor for lzip files
SYNOPSIS¶
lunzip [
options] [
files]
DESCRIPTION¶
Lunzip is a decompressor for lzip files. It is written in C and its small size
makes it well suited for embedded devices or software installers that need to
decompress files but do not need compression capabilities. Lunzip is fully
compatible with lzip-1.4 or newer.
Lunzip provides a 'low memory' mode able to decompress any file using as little
memory as 50 kB, irrespective of the dictionary size used to compress the
file. To activate it, specify the size of the output buffer with the
'--buffer-size' option and lunzip will use the decompressed file as dictionary
for distances beyond the buffer size. Of course, the smaller the output buffer
size used in relation to the dictionary size, the more accesses to disk are
needed and the slower the decompression is. This 'low memory' mode only works
when decompressing to a regular file.
OPTIONS¶
- -h, --help
- display this help and exit
- -V, --version
- output version information and exit
- -c, --stdout
- send output to standard output
- -d, --decompress
- decompress (this is the default)
- -f, --force
- overwrite existing output files
- -k, --keep
- keep (don't delete) input files
- -o, --output=<file>
- if reading stdin, place the output into <file>
- -q, --quiet
- suppress all messages
- -t, --test
- test compressed file integrity
- -u, --buffer-size=<bytes>
- set output buffer size in bytes
- -v, --verbose
- be verbose (a 2nd -v gives more)
If no file names are given, lunzip 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...
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 lunzip to
panic.
REPORTING BUGS¶
Report bugs to lzip-bug@nongnu.org
Lunzip home page:
http://www.nongnu.org/lzip/lunzip.html
COPYRIGHT¶
Copyright © 2014 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.