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