1 | pigz
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2 | ===
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3 |
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4 | 可以用来解压缩文件,gzip的并行实现升级版
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5 |
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6 | ## 补充说明
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7 |
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8 | **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/](http://zlib.net/pigz/)
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9 |
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10 | ### 语法
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11 |
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12 | ```shell
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13 | pigz [ -cdfhikKlLmMnNqrRtz0..9,11 ] [ -b blocksize ] [ -p threads ] [ -S suffix ] [ name ... ]
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14 | unpigz [ -cfhikKlLmMnNqrRtz ] [ -b blocksize ] [ -p threads ] [ -S suffix ] [ name ... ]
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15 | ```
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16 |
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17 | ### 参数
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18 |
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19 | ```shell
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20 | -0 to -9, -11 # Compression level (level 11, zopfli, is much slower)
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21 | --fast, --best # Compression levels 1 and 9 respectively
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22 | -b, --blocksize mmm # Set compression block size to mmmK (default 128K)
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23 | -c, --stdout # Write all processed output to stdout (won't delete)
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24 | -d, --decompress # Decompress the compressed input
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25 | -f, --force # Force overwrite, compress .gz, links, and to terminal
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26 | -F --first # Do iterations first, before block split for -11
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27 | -h, --help # Display a help screen and quit
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28 | -i, --independent # Compress blocks independently for damage recovery
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29 | -I, --iterations n # Number of iterations for -11 optimization
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30 | -J, --maxsplits n # Maximum number of split blocks for -11
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31 | -k, --keep # Do not delete original file after processing
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32 | -K, --zip # Compress to PKWare zip (.zip) single entry format
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33 | -l, --list # List the contents of the compressed input
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34 | -L, --license # Display the pigz license and quit
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35 | -m, --no-time # Do not store or restore mod time
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36 | -M, --time # Store or restore mod time
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37 | -n, --no-name # Do not store or restore file name or mod time
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38 | -N, --name # Store or restore file name and mod time
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39 | -O --oneblock # Do not split into smaller blocks for -11
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40 | -p, --processes n # Allow up to n compression threads (default is the number of online processors, or 8 if unknown)
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41 | -q, --quiet # Print no messages, even on error
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42 | -r, --recursive # Process the contents of all subdirectories
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43 | -R, --rsyncable # Input-determined block locations for rsync
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44 | -S, --suffix .sss # Use suffix .sss instead of .gz (for compression)
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45 | -t, --test # Test the integrity of the compressed input
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46 | -v, --verbose # Provide more verbose output
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47 | -V --version # Show the version of pigz
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48 | -Y --synchronous # Force output file write to permanent storage
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49 | -z, --zlib # Compress to zlib (.zz) instead of gzip format
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50 | -- # All arguments after "--" are treated as files
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51 | ```
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52 |
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53 | ### 实例
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54 |
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55 | 可以结合`tar`使用, 压缩命令
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56 |
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57 | ```shell
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58 | tar -cvf - dir1 dir2 dir3 | pigz -p 8 > output.tgz
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59 | ```
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60 |
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61 | 解压命令
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62 |
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63 | ```shell
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64 | pigz -p 8 -d output.tgz
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65 | ```
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66 |
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67 | 如果是gzip格式,也支持用tar解压
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68 |
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69 | ```shell
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70 | tar -xzvf output.tgz
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71 | ```
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