72 lines
2.7 KiB
Markdown
72 lines
2.7 KiB
Markdown
pigz
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===
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可以用来解压缩文件，gzip的并行实现升级版。
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## 补充说明
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**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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### 语法
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```bash
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pigz [ -cdfhikKlLmMnNqrRtz0..9,11 ] [ -b blocksize ] [ -p threads ] [ -S suffix ] [ name ... ]
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unpigz [ -cfhikKlLmMnNqrRtz ] [ -b blocksize ] [ -p threads ] [ -S suffix ] [ name ... ]
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```
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### 参数
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```bash
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-0 to -9, -11 Compression level (level 11, zopfli, is much slower)
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--fast, --best Compression levels 1 and 9 respectively
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-b, --blocksize mmm Set compression block size to mmmK (default 128K)
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-c, --stdout Write all processed output to stdout (won't delete)
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-d, --decompress Decompress the compressed input
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-f, --force Force overwrite, compress .gz, links, and to terminal
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-F --first Do iterations first, before block split for -11
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-h, --help Display a help screen and quit
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-i, --independent Compress blocks independently for damage recovery
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-I, --iterations n Number of iterations for -11 optimization
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-J, --maxsplits n Maximum number of split blocks for -11
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-k, --keep Do not delete original file after processing
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-K, --zip Compress to PKWare zip (.zip) single entry format
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-l, --list List the contents of the compressed input
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-L, --license Display the pigz license and quit
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-m, --no-time Do not store or restore mod time
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-M, --time Store or restore mod time
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-n, --no-name Do not store or restore file name or mod time
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-N, --name Store or restore file name and mod time
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-O --oneblock Do not split into smaller blocks for -11
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-p, --processes n Allow up to n compression threads (default is the number of online processors, or 8 if unknown)
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-q, --quiet Print no messages, even on error
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-r, --recursive Process the contents of all subdirectories
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-R, --rsyncable Input-determined block locations for rsync
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-S, --suffix .sss Use suffix .sss instead of .gz (for compression)
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-t, --test Test the integrity of the compressed input
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-v, --verbose Provide more verbose output
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-V --version Show the version of pigz
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-Y --synchronous Force output file write to permanent storage
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-z, --zlib Compress to zlib (.zz) instead of gzip format
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-- All arguments after "--" are treated as files
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```
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### 实例
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可以结合`tar`使用, 压缩命令
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```bash
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tar -cvf - dir1 dir2 dir3 | pigz -p 8 > output.tgz
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```
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解压命令
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```bash
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pigz -p 8 -d output.tgz
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```
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如果是gzip格式，也支持用tar解压
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```bash
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tar -xzvf output.tgz
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```
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