中南大学unix课件。很适合爱好linux/unnix初学者学习，愿意和大家分享！-Central South University unix courseware. Very suitable for loving linux/unnix beginners to learn, willing to share with you all!

Unix操作系统教学用PPT。适合于操作系统学习与设计。-Unix operating system for teaching PPT. Study and design for the operating system.

某大学Unix课件，比较基础详细.可以配合UNIX环境高级编程一书使用-The PPT is about Unix Develop.