Linux 的最重要的特徵之一是它的为许多不同的文件系统的支持。这使其非常灵活从而与许多另外的操作系统可以很好的共存。linux采用的是树型结构。最上层是根目录，其他的所有目录都是从根目录出发而生成的。微软的DOS和windows也是采用树型结构，但是在DOS和windows中这样的树型结构的根是磁盘分区的盘符，有几个分区就有几个树型结构，他们之间的关系是并列的。但是在linux中，无论操作系统管理几个磁盘分区，这样的目录树只有一个。-Linux the most important feature is its many different file system support. Making it a very flexible and so many other operating systems can co-exist very good. Linux using the tree structure. The top is the root directory, all other directories from the root directory are proceeding generated. Microsoft's DOS and windows also use tree structure, but the windows were DOS and the tree structure of the disk-drive area, a number of districts have several tree structure, the relationship between them is a parallel. But in linux, regardless of the operating system several disk partition management, the only one tree.