(1) 文件系统中包括初始化一个系统目录，包括根目录/，5个子目录(bin/ boot/ dev/ etc/ home/)。

　　　(2) 文件系统包括以下操作：

　　(a) 在根目录或者子目录中添加一个文件或者子目录。(目录名最后用 / 结尾，文件名不用)

　　(b) 在根目录或者子目录中删除一个文件或者子目录。

　　(c) 查找一个目录或文件的路径。(如输入搜索file1，则显示为/home/file1，或搜索user1，则显示为/home/user1/)

　　(d) 退出文件系统并保存当前目录结构，在下一次程序打开时能够显示上次所修改的文件系统结构。-(1) file system, including the initialization of a system directory, including the root directory/the the five subdirectories (bin/boot/dev/etc/home /).

(2) file systems include the following:

(a) to add a file or subdirectory in the root directory or subdirectory. (Directory name with the last　/　the end of the file name is not used)

(b) to delete a file or subdirectory in the root directory or subdirectory.

(c) Find a directory or file path. (Such as entering a search file1/home/file1, or search user1 is displayed as/home/user1 /)

(d) to exit the file system and save the current directory structure, the next time the program is open to display the last modified file system structure.