1XZDEC(1) XZ Utils XZDEC(1) 2 3 4 5NAME 6 xzdec, lzmadec - Small .xz and .lzma decompressors 7 8SYNOPSIS 9 xzdec [option]... [file]... 10 lzmadec [option]... [file]... 11 12DESCRIPTION 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. 19 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. 26 27OPTIONS 28 -d, --decompress, --uncompress 29 Ignored for xz(1) compatibility. xzdec supports only decompres- 30 sion. 31 32 -k, --keep 33 Ignored for xz(1) compatibility. xzdec never creates or removes 34 any files. 35 36 -c, --stdout, --to-stdout 37 Ignored for xz(1) compatibility. xzdec always writes the decom- 38 pressed data to standard output. 39 40 -q, --quiet 41 Specifying this once does nothing since xzdec never displays any 42 warnings or notices. Specify this twice to suppress errors. 43 44 -Q, --no-warn 45 Ignored for xz(1) compatibility. xzdec never uses the exit sta- 46 tus 2. 47 48 -h, --help 49 Display a help message and exit successfully. 50 51 -V, --version 52 Display the version number of xzdec and liblzma. 53 54EXIT STATUS 55 0 All was good. 56 57 1 An error occurred. 58 59 xzdec doesn't have any warning messages like xz(1) has, thus the exit 60 status 2 is not used by xzdec. 61 62NOTES 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). 66 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. 72 73SEE ALSO 74 xz(1) 75 76 XZ Embedded: <http://tukaani.org/xz/embedded.html> 77 78 79 80Tukaani 2010-09-27 XZDEC(1) 81