Book Image

PowerShell: Automating Administrative Tasks

By : Michael Shepard, Chendrayan Venkatesan, Sherif Talaat, Brenton J.W. Blawat
Book Image

PowerShell: Automating Administrative Tasks

By: Michael Shepard, Chendrayan Venkatesan, Sherif Talaat, Brenton J.W. Blawat

Overview of this book

Are you tired of managing Windows administrative tasks manually and are looking to automate the entire process? If yes, then this is the right course for you. This learning path starts your PowerShell journey and will help you automate the administration of the Windows operating system and applications that run on Windows. It will get you up and running with PowerShell, taking you from the basics of installation to writing scripts and performing web server automation. You will explore the PowerShell environment and discover how to use cmdlets, functions, and scripts to automate Windows systems. The next installment of the course focuses on gaining concrete knowledge of Windows PowerShell scripting to perform professional-level scripting. The techniques here are packed with PowerShell scripts and sample C# code to automate tasks. You will use .NET classes in PowerShell and C# to manage Exchange Online. In the final section, you will delve into real-world examples to learn how to simplify the management of your Windows environment. You will get to grips with PowerShell’s advanced functions and how to most effectively administer your system. This Learning Path combines some of the best that Packt has to offer in one complete, curated package. It includes content from the following Packt products: [*] Getting Started with PowerShell by Michael Shepard [*] Windows PowerShell for .Net Developers Second Edition by Chendrayan Venkatesan and Sherif Talaat [*] Mastering Windows PowerShell Scripting by Brenton J.W. Blawat
Table of Contents (6 chapters)

Chapter 3. Comparison Operators

PowerShell comparison operators are used to validate data present within your scripts. These operators enable you to compare data and execute code based on the data. This makes PowerShell an extremely effective tool to use for processing complicated data with the available comparison operators.

In this chapter, you will learn the following concepts:

  • Comparison operator basics
  • Equal and not equal comparison operators
  • Greater than and less than comparison operators
  • Contains, like, and match comparison operators
  • -AND / -OR comparison operators
  • Best practices for comparison operators

Comparison operator basics

When you are using comparison operators, you are creating expressions that evaluate to either True or False. In programming, this is known as Boolean. In the simplest form, you are asking PowerShell to evaluate similarities or dissimilarities between two items. Based on the findings from that expression, it will return True or False. When the whole expression...