pigz

可以用来解压缩文件，gzip的并行实现升级版。

补充说明

pigz命令可以用来解压缩文件，最重要的是支持多线程并行处理，解压缩比gzip快。主页: http://zlib.net/pigz/

语法

  1. pigz [ -cdfhikKlLmMnNqrRtz0..9,11 ] [ -b blocksize ] [ -p threads ] [ -S suffix ] [ name ...  ]
  2. unpigz [ -cfhikKlLmMnNqrRtz ] [ -b blocksize ] [ -p threads ] [ -S suffix ] [ name ...  ]

参数

  1. -0 to -9, -11        Compression level (level 11, zopfli, is much slower)
  2. --fast, --best       Compression levels 1 and 9 respectively
  3. -b, --blocksize mmm  Set compression block size to mmmK (default 128K)
  4. -c, --stdout         Write all processed output to stdout (won't delete)
  5. -d, --decompress     Decompress the compressed input
  6. -f, --force          Force overwrite, compress .gz, links, and to terminal
  7. -F  --first          Do iterations first, before block split for -11
  8. -h, --help           Display a help screen and quit
  9. -i, --independent    Compress blocks independently for damage recovery
  10. -I, --iterations n   Number of iterations for -11 optimization
  11. -J, --maxsplits n    Maximum number of split blocks for -11
  12. -k, --keep           Do not delete original file after processing
  13. -K, --zip            Compress to PKWare zip (.zip) single entry format
  14. -l, --list           List the contents of the compressed input
  15. -L, --license        Display the pigz license and quit
  16. -m, --no-time        Do not store or restore mod time
  17. -M, --time           Store or restore mod time
  18. -n, --no-name        Do not store or restore file name or mod time
  19. -N, --name           Store or restore file name and mod time
  20. -O  --oneblock       Do not split into smaller blocks for -11
  21. -p, --processes n    Allow up to n compression threads (default is the number of online processors, or 8 if unknown)
  22. -q, --quiet          Print no messages, even on error
  23. -r, --recursive      Process the contents of all subdirectories
  24. -R, --rsyncable      Input-determined block locations for rsync
  25. -S, --suffix .sss    Use suffix .sss instead of .gz (for compression)
  26. -t, --test           Test the integrity of the compressed input
  27. -v, --verbose        Provide more verbose output
  28. -V  --version        Show the version of pigz
  29. -Y  --synchronous    Force output file write to permanent storage
  30. -z, --zlib           Compress to zlib (.zz) instead of gzip format
  31. --                   All arguments after "--" are treated as files

实例

可以结合tar使用, 压缩命令

  1. tar -cvf - dir1 dir2 dir3 | pigz -p 8 > output.tgz

解压命令

  1. pigz -p 8 -d output.tgz

如果是gzip格式，也支持用tar解压

  1. tar -xzvf output.tgz