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

File scanning


File scanning is an important activity in enterprise environments. Whether it is to identify where credentials are being used, the use of sensitive information, or server configuration information, you will need a technique to quickly and efficiently scan file data. PowerShell natively has the ability to gather data from clear text files and parse information. Some of the most common clear text files include, but are not limited to, text files, log files, XML files, configuration files, and scripting files.

When you are developing a scanning function, you will have to scan the directories for specific file types and the contents of the file itself. To scan for specific file types, you can leverage the Get-ChildItem cmdlet with a folder path as an argument. You also use the -Include parameter with the wildcard file extension that you want to search for. For log and text files, wildcard file extensions would look like *.log and *.txt respectively. If you want to scan multiple...