[GTG] Re: [ITP] lzma 4.43 -- Compression program using high 7z compress algorithm

[DePriest, Jason R.]

On 11/8/07, Brian Dessent  wrote:
> "Dr. Volker Zell" wrote:
> >
> > >>>>> Jari Aalto writes:
> >
> >     > Included in Debian stable
> >
> >     >   http://packages.debian.org/lzma
> >
> > Builds fine and packaging looks good. GTG
>
> There is a problem with the man page of this package.  From the README,
> it is lifted from the debian package.  However, the debian package must
> be a totally different version of lzma, because it does not correspond
> at all to the one shipped here:
>
> LZMA(1)                                                          LZMA(1)
>
> NAME
>        lzma, unlzma, lzcat - LZMA compression and decompression tool
>
> SYNOPSIS
>        lzma [-123456789cdefhkLqtvV] [-S suffix] [filenames ...]
>        unlzma [-cfhkLqtvV] [-S suffix] [filenames ...]
>        lzcat [-fhLqV] [filenames ...]
>
> $ lzma --help
>
> LZMA 4.43 Copyright (c) 1999-2006 Igor Pavlov  2006-06-04
>
> Error: Incorrect command
>
>
> Usage:  LZMA <e|d> inputFile outputFile [<switches>...]
>   e: encode file
>   d: decode file
>   b: Benchmark
> <Switches>
>   -a{N}:  set compression mode - [0, 1], default: 1 (max)
>   -d{N}:  set dictionary - [0,30], default: 23 (8MB)
>   -fb{N}: set number of fast bytes - [5, 273], default: 128
>   -mc{N}: set number of cycles for match finder
>   -lc{N}: set number of literal context bits - [0, 8], default: 3
>   -lp{N}: set number of literal pos bits - [0, 4], default: 0
>   -pb{N}: set number of pos bits - [0, 4], default: 2
>   -mf{MF_ID}: set Match Finder: [bt2, bt3, bt4, hc4], default: bt4
>   -eos:   write End Of Stream marker
>   -si:    read data from stdin
>   -so:    write data to stdout
>
> The man page talks about a version that has the same interface as gzip
> and bzip2, however the binary that is in the package has a totally
> different set of options -- it would actually be nice to have the debian
> version instead of this.
>
> Also, the manpage refers to unlzma and lzcat which are nonexistant.
>
> Brian
>

It looks like this lzma is what Debian calls p7zip.  p7zip gives you
the 7z command which has all these command-line options directly from
the 7-zip for Windows program.

The lzma package has the gzip-ish commands.

jrdepriest@ebizsrvb:~$ apt-cache search lzma
lzma - Default and general compression method of 7z format in 7-Zip program
p7zip-full - 7z and 7za file archivers with high compression ratio

-Jason