操作系统课程设计 要完成的任务是模拟unix操作系统中的文件系统功能。在终端界面上用户可以象unix的shell命令一样输入一些命令，如输入ls 显示文件目录，chmod改变文件权限，chown改变文件拥有者，chgrp改变文件所属组，chnam改变文件名，pwd显示当前目录，cd改变当前目录，mkdir创建目录，rmdir删除目录，mk创建文件 ,cp文件拷贝，rm删除文件，cat显示文件内容，login切换用户，passwd修改用户口令 等功能。在后台，要实现混合索引式文件结构，包括用

With the accelerate implementation of information and the rapid development of e-commerce and e-government, the network security is of great significance. Now people are more concerned about how to ensure working at a trusted network environment. In

几篇优秀的有关文件系统过滤驱动编程的研究生论文，用来学习-Several excellent file system filter driver programming on graduate thesis, for learning

Periodic boundary conditions (PBC) are a set of boundary conditions that can be used to simulate a large system (i.e. bulk material) simply by modeling a finite Representive Volume Element (RVE). PBC has been favored among many researchers and practi