81 lines
2.9 KiB
Plaintext
81 lines
2.9 KiB
Plaintext
XZDEC(1) XZ Utils XZDEC(1)
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NAME
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xzdec, lzmadec - Small .xz and .lzma decompressors
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SYNOPSIS
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xzdec [option...] [file...]
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lzmadec [option...] [file...]
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DESCRIPTION
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xzdec is a liblzma-based decompression-only tool for .xz (and only .xz)
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files. xzdec is intended to work as a drop-in replacement for xz(1) in
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the most common situations where a script has been written to use xz
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--decompress --stdout (and possibly a few other commonly used options)
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to decompress .xz files. lzmadec is identical to xzdec except that
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lzmadec supports .lzma files instead of .xz files.
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To reduce the size of the executable, xzdec doesn't support multi-
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threading or localization, and doesn't read options from XZ_DEFAULTS
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and XZ_OPT environment variables. xzdec doesn't support displaying
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intermediate progress information: sending SIGINFO to xzdec does noth-
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ing, but sending SIGUSR1 terminates the process instead of displaying
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progress information.
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OPTIONS
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-d, --decompress, --uncompress
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Ignored for xz(1) compatibility. xzdec supports only decompres-
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sion.
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-k, --keep
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Ignored for xz(1) compatibility. xzdec never creates or removes
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any files.
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-c, --stdout, --to-stdout
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Ignored for xz(1) compatibility. xzdec always writes the decom-
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pressed data to standard output.
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-q, --quiet
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Specifying this once does nothing since xzdec never displays any
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warnings or notices. Specify this twice to suppress errors.
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-Q, --no-warn
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Ignored for xz(1) compatibility. xzdec never uses the exit sta-
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tus 2.
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-h, --help
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Display a help message and exit successfully.
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-V, --version
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Display the version number of xzdec and liblzma.
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EXIT STATUS
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0 All was good.
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1 An error occurred.
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xzdec doesn't have any warning messages like xz(1) has, thus the exit
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status 2 is not used by xzdec.
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NOTES
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Use xz(1) instead of xzdec or lzmadec for normal everyday use. xzdec
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or lzmadec are meant only for situations where it is important to have
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a smaller decompressor than the full-featured xz(1).
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xzdec and lzmadec are not really that small. The size can be reduced
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further by dropping features from liblzma at compile time, but that
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shouldn't usually be done for executables distributed in typical non-
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embedded operating system distributions. If you need a truly small .xz
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decompressor, consider using XZ Embedded.
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SEE ALSO
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xz(1)
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XZ Embedded: <http://tukaani.org/xz/embedded.html>
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Tukaani 2013-06-30 XZDEC(1)
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