1XZDEC(1)                           XZ Utils                           XZDEC(1)
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NAME

6       xzdec, lzmadec - Small .xz and .lzma decompressors
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SYNOPSIS

9       xzdec [option...]  [file...]
10       lzmadec [option...]  [file...]
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DESCRIPTION

13       xzdec is a liblzma-based decompression-only tool for .xz (and only .xz)
14       files.  xzdec is intended to work as a drop-in replacement for xz(1) in
15       the  most  common  situations where a script has been written to use xz
16       --decompress --stdout (and possibly a few other commonly used  options)
17       to  decompress  .xz  files.   lzmadec is identical to xzdec except that
18       lzmadec supports .lzma files instead of .xz files.
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20       To reduce the size of the  executable,  xzdec  doesn't  support  multi‐
21       threading  or  localization,  and doesn't read options from XZ_DEFAULTS
22       and XZ_OPT environment variables.   xzdec  doesn't  support  displaying
23       intermediate  progress information: sending SIGINFO to xzdec does noth‐
24       ing, but sending SIGUSR1 terminates the process instead  of  displaying
25       progress information.
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OPTIONS

28       -d, --decompress, --uncompress
29              Ignored for xz(1) compatibility.  xzdec supports only decompres‐
30              sion.
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32       -k, --keep
33              Ignored for xz(1) compatibility.  xzdec never creates or removes
34              any files.
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36       -c, --stdout, --to-stdout
37              Ignored for xz(1) compatibility.  xzdec always writes the decom‐
38              pressed data to standard output.
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40       -q, --quiet
41              Specifying this once does nothing since xzdec never displays any
42              warnings or notices.  Specify this twice to suppress errors.
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44       -Q, --no-warn
45              Ignored for xz(1) compatibility.  xzdec never uses the exit sta‐
46              tus 2.
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48       -h, --help
49              Display a help message and exit successfully.
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51       -V, --version
52              Display the version number of xzdec and liblzma.
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EXIT STATUS

55       0      All was good.
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57       1      An error occurred.
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59       xzdec doesn't have any warning messages like xz(1) has, thus  the  exit
60       status 2 is not used by xzdec.
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NOTES

63       Use  xz(1)  instead of xzdec or lzmadec for normal everyday use.  xzdec
64       or lzmadec are meant only for situations where it is important to  have
65       a smaller decompressor than the full-featured xz(1).
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67       xzdec  and  lzmadec are not really that small.  The size can be reduced
68       further by dropping features from liblzma at  compile  time,  but  that
69       shouldn't  usually  be done for executables distributed in typical non-
70       embedded operating system distributions.  If you need a truly small .xz
71       decompressor, consider using XZ Embedded.
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SEE ALSO

74       xz(1)
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76       XZ Embedded: <http://tukaani.org/xz/embedded.html>
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80Tukaani                           2013-06-30                          XZDEC(1)
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