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This chapter describes nearly everything you will need to know to successfully complete your course work. It is a good idea to become comfortable with all of the topics in this chapter early, so that when things aren't going your way, you won't be struggling with an editor the night before an assignment is due. The best way to become comfortable with UNIX, as with most any computer topic, is sit down at the computer and experiment. Use the information here as a guide, but don't be afraid to try new things. Of course, you must exercise caution with some commands such as rm, which removes files.
Each of these sections is merely an introduction to the variety of options
available to the described tools. It is almost a trademark of UNIX to
provide endless esoteric options to each available command. To learn more
about each tool, consult the chapter 4 for ideas of where to
look. Among other things, chapter 4 explains the commonly used and
commonly confusing man program. Some topics are also further
covered in Chapter .