CHAPTER 3
Working with the Linux Shell
In this chapter, you will learn about
• What a shell is
• Setting a local environment
• Setting time
• Configuring the shell
• Bash configuration files
• Redirection
You may find it helpful to log on to the virtual machine as user student1 (password student1) while reading this chapter.
What Is a Shell?
A shell is a program that functions as a user interface, command-line interpreter, and programing (scripting) language. Let’s take a brief look at each of these entities.
Users need a way to tell the operating system what tasks it needs to complete, and the operating system needs a way to communicate results to the users. A user interface allows a user to interact with the operating system. ...
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