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.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.46.1.
.TH LUNZIP "1" "April 2017" "lunzip 1.9" "User Commands"
.SH NAME
lunzip \- decompressor for the lzip format
.SH SYNOPSIS
.B lunzip
[\fI\,options\/\fR] [\fI\,files\/\fR]
.SH DESCRIPTION
Lunzip is a decompressor for the lzip format. 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 don't need compression
capabilities. Lunzip is fully compatible with lzip\-1.4 or newer.
.PP
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 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
and is intended for systems without enough memory (RAM + swap) to keep
the whole dictionary at once.
.SH OPTIONS
.TP
\fB\-h\fR, \fB\-\-help\fR
display this help and exit
.TP
\fB\-V\fR, \fB\-\-version\fR
output version information and exit
.TP
\fB\-a\fR, \fB\-\-trailing\-error\fR
exit with error status if trailing data
.TP
\fB\-c\fR, \fB\-\-stdout\fR
write to standard output, keep input files
.TP
\fB\-d\fR, \fB\-\-decompress\fR
decompress (this is the default)
.TP
\fB\-f\fR, \fB\-\-force\fR
overwrite existing output files
.TP
\fB\-k\fR, \fB\-\-keep\fR
keep (don't delete) input files
.TP
\fB\-l\fR, \fB\-\-list\fR
print (un)compressed file sizes
.TP
\fB\-o\fR, \fB\-\-output=\fR<file>
if reading standard input, write to <file>
.TP
\fB\-q\fR, \fB\-\-quiet\fR
suppress all messages
.TP
\fB\-t\fR, \fB\-\-test\fR
test compressed file integrity
.TP
\fB\-u\fR, \fB\-\-buffer\-size=\fR<bytes>
set output buffer size in bytes
.TP
\fB\-v\fR, \fB\-\-verbose\fR
be verbose (a 2nd \fB\-v\fR gives more)
.PP
If no file names are given, or if a file is '\-', 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...
Buffer sizes 12 to 29 are interpreted as powers of two, meaning 2^12
to 2^29 bytes.
.PP
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.
.SH "REPORTING BUGS"
Report bugs to lzip\-bug@nongnu.org
.br
Lunzip home page: http://www.nongnu.org/lzip/lunzip.html
.SH COPYRIGHT
Copyright \(co 2017 Antonio Diaz Diaz.
License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html>
.br
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
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