Functions with PowerShell

In this module of our PowerShell course, we'll be tackling a new concept: functions! Read on to find out more about the contents of this module.

In the first chapter,"What are functions for?", we'll explore the usefulness of functions and why they're essential in PowerShell scripting. You'll then understand why functions help you organize your code and avoid redundancy.

The second chapter, entitled"Creating your first PowerShell function", takes you step-by-step through the creation of your first PowerShell function. This will be an opportunity to familiarize yourself with the syntax, and you'll discover how to structure a function and how to call it in your script.

In the third chapter,"Adding controls to function parameters", we'll evolve our function to add an extra layer of control. You'll learn how to define and manage the parameters of your function to improve its flexibility and robustness in the face of the variety of data it is likely to "receive" as input. A fourth chapter, entitled"Managing the position of function parameters", completes this section, covering how to manage the position of parameters when calling a function, by associating a position number with each parameter.

Finally, in the last chapter,"A cmdlet-like function with CmdletBinding()", we go one step further in manipulating functions with PowerShell. You'll discover how to use "CmdletBinding" to transform your function into a cmdlet, offering access to additional parameters.

Each chapter is designed to give you not only a theoretical understanding, but also practical experience of creating and using functions in PowerShell. By the end of this module, you should be able to create your first functions on your own.