Linux with Operating System Concepts

Chapter 2

The Bash Shell

This chapter’s learning objects are

• To understand the role of the shell in Linux
• To be able to enter commands via the command line prompt in Linux
• To understand what options and parameters are in Linux commands
• To be able to apply aliases, history, command-line editing, brace expansion, tilde expansion, and wildcards in Bash
• To be able to use variables from the command line prompt and understand the roles of the common environment variables
• To understand the Linux commands ls and man
• To be able to apply redirection in Linux commands
• To be able to tailor a shell using .bashrc, .bash_profile

2.1 Introduction

A shell is a user interface. Recall from Chapter 1, there are different types of user interfaces. In Linux, ...