鸟哥的Ｌｉｎｕｘ的一部分， 比较基础，系统，条理。 我做成了PDF格式并作了些注视，版权归鸟哥。 另外，此为繁体版本。-Bird brother of Linux as part of basis of comparison, systematic, well-organized. I made the PDF format and made more attention brother belongs to the birds. In addition, the Tradition