To compress or uncompress files through bzip2, use tar -z.
要通过bzip2压缩或解压缩文件，可使用tar - z命令。
It can also compress files and extract audio from video files.
它也可以压缩文件和提取音频视频文件。
This is determined in the apps ability to compress or decompress files with substantial power and extraction speeds.
这是根据程序打包压缩文件的实际能力和提取速度决定的。
应用推荐