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

Scheduled tasks


Scheduled tasks enable you to schedule automated actions on a system. Microsoft has a wide variety of built-in scheduled tasks, which include time synchronization, universal plug and play, Windows updates, and disk defragmentation. These task actions are invoked by different trigger criteria and automatically run on your system.

You can retrieve the list of scheduled tasks on a system by using the get-scheduledtask cmdlet. The get-scheduledtask cmdlet reveals a list of scheduled task names, their taskpath, and their current state. You may also return other properties such as author, date, description, version, and documentation.

To retrieve and count scheduled tasks on a system, you can leverage the following:

get-scheduledtask 
(get-scheduledtask).count

The output of this command would look like this:

This example displays how to retrieve scheduled tasks on a system and how to count the total number of tasks:

  1. You first start by calling the get-scheduledtask cmdlet. You will...