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Merging upstream version 1.13~rc1.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
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Daniel Baumann 2025-02-23 19:27:49 +01:00
parent 8a20f7e45f
commit fab8025fd0
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
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doc/pdlzip.1
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@ -1,5 +1,5 @@
.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.47.16.
.TH PDLZIP "1" "January 2022" "pdlzip 1.12" "User Commands"
.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.49.2.
.TH PDLZIP "1" "December 2023" "pdlzip 1.13-rc1" "User Commands"
.SH NAME
pdlzip \- reduces the size of files
.SH SYNOPSIS
@ -13,14 +13,15 @@ Pdlzip is written in C and is (hope)fully compatible with lzip 1.4 or newer.
.PP
Lzip is a lossless data compressor with a user interface similar to the one
of gzip or bzip2. Lzip uses a simplified form of the 'Lempel\-Ziv\-Markov
chain\-Algorithm' (LZMA) stream format and provides a 3 factor integrity
checking to maximize interoperability and optimize safety. Lzip can compress
about as fast as gzip (lzip \fB\-0\fR) or compress most files more than bzip2
(lzip \fB\-9\fR). Decompression speed is intermediate between gzip and bzip2.
Lzip is better than gzip and bzip2 from a data recovery perspective. Lzip
has been designed, written, and tested with great care to replace gzip and
bzip2 as the standard general\-purpose compressed format for unix\-like
systems.
chain\-Algorithm' (LZMA) stream format to maximize interoperability. The
maximum dictionary size is 512 MiB so that any lzip file can be decompressed
on 32\-bit machines. Lzip provides accurate and robust 3\-factor integrity
checking. Lzip can compress about as fast as gzip (lzip \fB\-0\fR) or compress most
files more than bzip2 (lzip \fB\-9\fR). Decompression speed is intermediate between
gzip and bzip2. Lzip is better than gzip and bzip2 from a data recovery
perspective. Lzip has been designed, written, and tested with great care to
replace gzip and bzip2 as the standard general\-purpose compressed format for
Unix\-like systems.
.PP
Pdlzip is also able to decompress legacy lzma\-alone (.lzma) files.
Lzma\-alone is a very bad format; it is essentially a raw LZMA stream.
@ -42,7 +43,7 @@ exit with error status if trailing data
write to standard output, keep input files
.TP
\fB\-d\fR, \fB\-\-decompress\fR
decompress
decompress, test compressed file integrity
.TP
\fB\-f\fR, \fB\-\-force\fR
overwrite existing output files
@ -87,22 +88,22 @@ If no file names are given, or if a file is '\-', pdlzip 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 27 are interpreted as powers of two, meaning 2^12
to 2^27 bytes.
Dictionary sizes 12 to 27 are interpreted as powers of two, meaning 2^12 to
2^27 bytes.
.PP
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 options \fB\-\-dictionary\-size\fR and \fB\-\-match\-length\fR
directly to achieve optimal performance. For example, \fB\-9m64\fR usually
compresses executables more (and faster) than \fB\-9\fR.
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 options \fB\-\-dictionary\-size\fR and \fB\-\-match\-length\fR directly
to achieve optimal performance. For example, \fB\-9m64\fR usually compresses
executables more (and faster) than \fB\-9\fR.
.PP
To extract all the files from archive 'foo.tar.lz', use the commands
\&'tar \fB\-xf\fR foo.tar.lz' or 'pdlzip \fB\-cd\fR foo.tar.lz | tar \fB\-xf\fR \-'.
.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 (e.g., bug) which
caused pdlzip to panic.
Exit status: 0 for a normal exit, 1 for environmental problems
(file not found, invalid command\-line options, I/O errors, etc), 2 to
indicate a corrupt or invalid input file, 3 for an internal consistency
error (e.g., bug) which caused pdlzip to panic.
.PP
Pdlzip includes public domain compression/decompression code from the LZMA
SDK (Software Development Kit) written by Igor Pavlov.
@ -111,7 +112,7 @@ Report bugs to lzip\-bug@nongnu.org
.br
Pdlzip home page: http://www.nongnu.org/lzip/pdlzip.html
.SH COPYRIGHT
Copyright \(co 2022 Antonio Diaz Diaz.
Copyright \(co 2023 Antonio Diaz Diaz.
Public Domain 2009 Igor Pavlov.
License 2\-clause BSD.
.br