Chapter 3. Working with Files and Directories - Permissions, Commands, File Name Expansion, and Wild Cards

Introduction

A variety of topics related to UNIX file system structure, navigation, and daily use are covered in this chapter, including:

  • Permissions

  • Absolute and relative path names

  • File name expansion and wild cards

  • Several commands including: pwd, cd, chmod, cp, mv, mkdir, rm, rmdir

  • Examples of using many commands

Permissions

Permissions

The best place to begin discussing permissions is by issuing the ls command, which lists the contents of directories. Permissions are the means by which files and directories are made secure on your UNIX system. Because UNIX ...

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