《Red Hat Linux 用户基础》，这本书是红帽学院官方指定教程，但是没有附答案。这个就是那本书的答案(官方的，绝对权威)，希望能对学习linux的同学有帮助。- Red Hat Linux user base, This book is the designated official Red Hat Academy curriculum, but not attached to the answer. This is the answer to that book (official,