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XZDEC(1)				     XZ Utils					 XZDEC(1)

       xzdec, lzmadec - Small .xz and .lzma decompressors

       xzdec [option]...  [file]...
       lzmadec [option]...  [file]...

       xzdec  is  a liblzma-based decompression-only tool for .xz (and only .xz) files.  xzdec is
       intended to work as a drop-in replacement for xz(1) in the most common situations where	a
       script has been written to use xz --decompress --stdout (and possibly a few other commonly
       used options) to decompress .xz files.  lzmadec is identical to xzdec except that  lzmadec
       supports .lzma files instead of .xz files.

       To  reduce  the	size of the executable, xzdec doesn't support multithreading or localiza-
       tion, and doesn't read options from XZ_OPT environment variable.   xzdec  doesn't  support
       displaying  intermediate  progress information: sending SIGINFO to xzdec does nothing, but
       sending SIGUSR1 terminates the process instead of displaying progress information.

       -d, --decompress, --uncompress
	      Ignored for xz(1) compatibility.	xzdec supports only decompression.

       -k, --keep
	      Ignored for xz(1) compatibility.	xzdec never creates or removes any files.

       -c, --stdout, --to-stdout
	      Ignored for xz(1) compatibility.	xzdec always  writes  the  decompressed  data  to
	      standard output.

       -M limit, --memory=limit
	      Set  the	memory usage limit.  If this option is specified multiple times, the last
	      one takes effect. The limit can be specified in multiple ways:

	      o  The limit can be an absolute value in bytes. Using an integer	suffix	like  MiB
		 can be useful. Example: --memory=80MiB

	      o  The  limit  can  be  specified  as a percentage of physical RAM. Example: --mem-

	      o  The limit can be reset back to its default value (currently  40  %  of  physical
		 RAM) by setting it to 0.

	      o  The  memory  usage limiting can be effectively disabled by setting limit to max.
		 This isn't recommended. It's usually better to use, for example, --memory=90%.

	      The current limit can be seen near the bottom of the output of the --help option.

       -q, --quiet
	      Specifying this once does nothing  since	xzdec  never  displays	any  warnings  or
	      notices.	Specify this twice to suppress errors.

       -Q, --no-warn
	      Ignored for xz(1) compatibility.	xzdec never uses the exit status 2.

       -h, --help
	      Display a help message and exit successfully.

       -V, --version
	      Display the version number of xzdec and liblzma.

       0      All was good.

       1      An error occurred.

       xzdec doesn't have any warning messages like xz(1) has, thus the exit status 2 is not used
       by xzdec.

       xzdec and lzmadec are not really that small. The size can be reduced further  by  dropping
       features  from liblzma at compile time, but that shouldn't usually be done for executables
       distributed in typical non-embedded operating system distributions. If you  need  a  truly
       small .xz decompressor, consider using XZ Embedded.


Tukaani 				    2009-06-04					 XZDEC(1)
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