Datasheet

19
Working with the Shell
Working with the Shell
Graphical user interfaces are increasingly becoming important for Linux, but us-
ing the mouse is not always the best way to perform daily tasks. The command
line provides high flexibility and efficiency. The first part of this chapter provides
an introduction to the Bash shell. It is followed by an explanation of the user per-
mission concept in Linux and a list of the most important commands. The chapter
closes with a description of the vi text editor.
19.1 Introduction to Bash . . . . . . . . . . . . . . . . . . . . . 246
19.2 Users and Access Permissions . . . . . . . . . . . . . . . 255
19.3 Important Linux Commands . . . . . . . . . . . . . . . . 260
19.4 The vi Editor . . . . . . . . . . . . . . . . . . . . . . . . . 268