75 lines
2.6 KiB
Groff
75 lines
2.6 KiB
Groff
.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.46.1.
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.TH LUNZIP "1" "July 2015" "lunzip 1.8-pre1" "User Commands"
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.SH NAME
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lunzip \- decompressor for the lzip format
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.SH SYNOPSIS
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.B lunzip
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[\fI\,options\/\fR] [\fI\,files\/\fR]
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.SH DESCRIPTION
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Lunzip is a decompressor for the lzip format. It is written in C and its
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small size makes it well suited for embedded devices or software
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installers that need to decompress files but do not need compression
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capabilities. Lunzip is fully compatible with lzip\-1.4 or newer.
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.PP
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Lunzip provides a 'low memory' mode able to decompress any file using as
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little memory as 50 kB, irrespective of the dictionary size used to
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compress the file. To activate it, specify the size of the output buffer
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with the '\-\-buffer\-size' option and lunzip will use the decompressed
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file as dictionary for distances beyond the buffer size. Of course, the
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smaller the output buffer size used in relation to the dictionary size,
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the more accesses to disk are needed and the slower the decompression is.
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This 'low memory' mode only works when decompressing to a regular file.
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.SH OPTIONS
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.TP
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\fB\-h\fR, \fB\-\-help\fR
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display this help and exit
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.TP
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\fB\-V\fR, \fB\-\-version\fR
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output version information and exit
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.TP
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\fB\-c\fR, \fB\-\-stdout\fR
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send output to standard output
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.TP
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\fB\-d\fR, \fB\-\-decompress\fR
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decompress (this is the default)
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.TP
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\fB\-f\fR, \fB\-\-force\fR
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overwrite existing output files
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.TP
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\fB\-k\fR, \fB\-\-keep\fR
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keep (don't delete) input files
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.TP
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\fB\-o\fR, \fB\-\-output=\fR<file>
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if reading stdin, place the output into <file>
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.TP
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\fB\-q\fR, \fB\-\-quiet\fR
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suppress all messages
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.TP
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\fB\-t\fR, \fB\-\-test\fR
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test compressed file integrity
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.TP
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\fB\-u\fR, \fB\-\-buffer\-size=\fR<bytes>
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set output buffer size in bytes
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.TP
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\fB\-v\fR, \fB\-\-verbose\fR
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be verbose (a 2nd \fB\-v\fR gives more)
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.PP
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If no file names are given, lunzip decompresses from standard input to
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standard output.
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Numbers may be followed by a multiplier: k = kB = 10^3 = 1000,
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Ki = KiB = 2^10 = 1024, M = 10^6, Mi = 2^20, G = 10^9, Gi = 2^30, etc...
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.PP
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Exit status: 0 for a normal exit, 1 for environmental problems (file
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not found, invalid flags, I/O errors, etc), 2 to indicate a corrupt or
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invalid input file, 3 for an internal consistency error (eg, bug) which
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caused lunzip to panic.
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.SH "REPORTING BUGS"
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Report bugs to lzip\-bug@nongnu.org
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.br
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Lunzip home page: http://www.nongnu.org/lzip/lunzip.html
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.SH COPYRIGHT
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Copyright \(co 2015 Antonio Diaz Diaz.
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License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html>
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.br
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This is free software: you are free to change and redistribute it.
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There is NO WARRANTY, to the extent permitted by law.
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