Book Image

Enterprise PowerShell Scripting Bootcamp

By : Brenton J.W. Blawat
Book Image

Enterprise PowerShell Scripting Bootcamp

By: Brenton J.W. Blawat

Overview of this book

Enterprise PowerShell Scripting Bootcamp explains how to create your own repeatable PowerShell scripting framework. This framework contains script logging methodologies, answer file interactions, and string encryption and decryption strategies. This book focuses on evaluating individual components to identify the system’s function, role, and unique characteristics. To do this, you will leverage built-in CMDlets and Windows Management Instrumentation (WMI) to explore Windows services, Windows processes, Windows features, scheduled tasks, and disk statistics. You will also create custom functions to perform a deep search for specific strings in files and evaluate installed software through executable properties. We will then discuss different scripting techniques to improve the efficiency of scripts. By leveraging several small changes to your code, you can increase the execution performance by over 130%. By the end of this book, you will be able to tie all of the concepts together in a PowerShell-based Windows server scanning script. This discovery script will be able to scan a Windows server to identify a multitude of components.
Table of Contents (21 chapters)
Enterprise PowerShell Scripting Bootcamp
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
3
Working with Answer Files
Index

Chapter 10. Optimizing Script Execution Speed

When you execute the Windows server scanning script, you most likely will be processing a large number of objects. Small efficiencies in your coding practices can equate to exponentially faster execution times for large sets of data. Due to PowerShell being so flexible, it is possible to write two different sets of code that perform the exact same activity. However, you will find that certain coding techniques are much more efficient than others. In some cases, you can increase your script performance by over 200 percent.

This chapter focuses on the quick changes that you can make to your scripts to optimize efficiency. You will also learn about cmdlets and methods that you should avoid to ensure that you are not impacting your script's performance. By following the recommendations in this chapter, you can significantly reduce the amount of time that the Window server scanning script takes to scan systems.

In this chapter, you will:

  • Learn how to...