Chapter 1, The What and Why of Scripting with Bash, will introduce Linux shells, how to write your first shell script, how to prepare your editor, how to debug your shell script, and some basic bash programming, such as declaring variables, variable scope, and command substitution.
Chapter 2, Creating Interactive Scripts, covers how to read input from the user using read command, how to pass options to your script, how to control the visibility of the entered text, and how to limit the number of entered characters.
Chapter 3, Conditions Attached, will introduce the if statement, the case statement, and other testing command such as else and elif.
Chapter 4, Creating Code Snippets, covers creating and using code snippets using editors, such as vim and Visual Studio Code.
Chapter 5, Alternative Syntax, will discuss advanced testing using [[ and how to perform arithmetic operations.
Chapter 6, Iterating with Loops, will teach you how to use for loops, while loops, and until loops to iterate over simple values and complex values.
Chapter 7, Creating Building Blocks with Functions, will introduce functions and explains how to create a function, list builtin functions, pass parameters to functions, and writing recursive functions.
Chapter 8, Introducing the Stream Editor, will introduce the basics of sed tool to manipulate files, such as adding, replacing deleting, and transforming text.
Chapter 9, Automating Apache Virtual Hosts, contains a practical example of sed and explains how to create virtual hosts automatically using sed.
Chapter 10, AWK Fundamentals, will discuss AWK and how to filter file content using it. Also, we will discuss some AWK programming basics.
Chapter 11, Regular Expressions, covers regular expressions, their engines, and how to use them with sed and AWK to empower your script.
Chapter 12, Summarizing Logs with AWK, will show how to process the httpd.conf Apache log file using AWK and extract useful well-formatted data.
Chapter 13, A Better lastlog with AWK, will show you how to use AWK to output beautiful reports using the lastlog command by filtering and processing the lastlog output.
Chapter 14, Using Python as a Bash Scripting Alternative, will discuss Python programming language basics and explains how to write some Python scripts as a bash script alternative.