diff --git a/README.md b/README.md new file mode 100644 index 0000000000000000000000000000000000000000..edb5e59bda17a97914c9d450d8d23989690b3692 --- /dev/null +++ b/README.md @@ -0,0 +1,68 @@ +# pbzip2 + +#### 介绍 + +pbzip2是基于bzip2发行的多线程版本,压缩比与bzip2大致相同,但压缩时间上比bzip2减少了线程倍数, +这是因为bzip2是单线程工作,而bpzip2是多线程的 + +pbzip2的输出压缩文件兼容bzip2 v1.0.2以及更新的版本(pbzip2压缩的压缩包可用bzip2进行解压缩) + +#### 软件架构 +软件架构说明 + + +#### 安装教程 + +1.在欧拉操作系统下,可通过运行如下命令进行安装: +> dnf install pbzip2 + + +#### 使用说明 + +```` +Usage: pbzip2 [-1 .. -9] [-b#cdfhklm#p#qrS#tVz] + -1 .. -9 set BWT block size to 100k .. 900k (default 900k) + -b# Block size in 100k steps (default 9 = 900k) + -c,--stdout Output to standard out (stdout) + -d,--decompress Decompress file + -f,--force Overwrite existing output file + -h,--help Print this help message + -k,--keep Keep input file, don't delete + -l,--loadavg Load average determines max number processors to use + -m# Maximum memory usage in 1MB steps (default 100 = 100MB) + -p# Number of processors to use (default: autodetect [1]) + -q,--quiet Quiet mode (default) + -r,--read Read entire input file into RAM and split between processors + -S# Child thread stack size in 1KB steps (default stack size if unspecified) + -t,--test Test compressed file integrity + -v,--verbose Verbose mode + -V,--version Display version info for pbzip2 then exit + -z,--compress Compress file (default) + --ignore-trailing-garbage=# Ignore trailing garbage flag (1 - ignored; 0 - forbidden) + +If no file names are given, pbzip2 compresses or decompresses from standard input to standard output. + +Example: pbzip2 -b15vk myfile.tar +Example: pbzip2 -p4 -r -5 myfile.tar second*.txt +Example: tar cf myfile.tar.bz2 --use-compress-prog=pbzip2 dir_to_compress/ +Example: pbzip2 -d -m500 myfile.tar.bz2 +Example: pbzip2 -dc myfile.tar.bz2 | tar x +Example: pbzip2 -c < myfile.txt > myfile.txt.bz2 +```` + +#### 参与贡献 + +1. Fork 本仓库 +2. 新建 Feat_xxx 分支 +3. 提交代码 +4. 新建 Pull Request + + +#### 码云特技 + +1. 使用 Readme\_XXX.md 来支持不同的语言,例如 Readme\_en.md, Readme\_zh.md +2. 码云官方博客 [blog.gitee.com](https://blog.gitee.com) +3. 你可以 [https://gitee.com/explore](https://gitee.com/explore) 这个地址来了解码云上的优秀开源项目 +4. [GVP](https://gitee.com/gvp) 全称是码云最有价值开源项目,是码云综合评定出的优秀开源项目 +5. 码云官方提供的使用手册 [https://gitee.com/help](https://gitee.com/help) +6. 码云封面人物是一档用来展示码云会员风采的栏目 [https://gitee.com/gitee-stars/](https://gitee.com/gitee-stars/) \ No newline at end of file