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  • Book Overview & Buying Enterprise PowerShell Scripting Bootcamp
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Enterprise PowerShell Scripting Bootcamp

Enterprise PowerShell Scripting Bootcamp

By : Brenton J.W. Blawat
3.3 (3)
Buy this Book
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Enterprise PowerShell Scripting Bootcamp

Enterprise PowerShell Scripting Bootcamp

3.3 (3)
By: Brenton J.W. Blawat
Buy this Book

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 (15 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Getting Started with Enterprise PowerShell Scripting
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1. Getting Started with Enterprise PowerShell Scripting
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Windows server scanning script
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Performance considerations
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PowerShell scripting templates
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Summary
2
2. Script Structure, Comment Blocks, and Script Logging
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2. Script Structure, Comment Blocks, and Script Logging
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Overall script structure
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Comment blocks
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Script logging
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Summary
3
3. Working with Answer Files
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3. Working with Answer Files
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Answer files
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Summary
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4. String Encryption and Decryption
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4. String Encryption and Decryption
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RijndaelManaged encryption
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Encrypting and decrypting strings
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Summary
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5. Interacting with Services, Processes, Profiles, and Logged on Users
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5. Interacting with Services, Processes, Profiles, and Logged on Users
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Windows services
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Managing Windows processes
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Identifying logged on users
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User profiles
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Summary
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6. Evaluating Scheduled Tasks
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6. Evaluating Scheduled Tasks
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Scheduled tasks
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Identifying scheduled tasks running as alternate users
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Summary
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7. Determining Disk Statistics
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7. Determining Disk Statistics
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Disk statistics
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Disk information script
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Summary
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8. Windows Features and Installed Software Detection
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8. Windows Features and Installed Software Detection
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Windows features
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Installed software detection
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Summary
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9. File Scanning
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9. File Scanning
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File scanning
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Excluding long paths
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Excluding files
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Summary
10
10. Optimizing Script Execution Speed
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10. Optimizing Script Execution Speed
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Script execution speed
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Summary
11
11. Improving Performance by Using Regular Expressions
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11. Improving Performance by Using Regular Expressions
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Using regular expressions
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Dynamically building expressions
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Implementating regular expression performance
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Summary
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12. Overall Script Workflow, Termination Files, and Merging Data Results
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12. Overall Script Workflow, Termination Files, and Merging Data Results
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Windows server scanning script overview
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Pre-script security
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XML answer file creation
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PowerShell script 3 - the termination files
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PowerShell script 4 - merging the scanning script result data
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Summary
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13. Creating the Windows Server Scanning Script and Post-Execution Cleanup
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13. Creating the Windows Server Scanning Script and Post-Execution Cleanup
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Windows server scanning script creation
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Creating a termination function
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Multiple Windows server scanning script functions
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Running the script
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Performing script cleanup
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Summary
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Index
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Index

Chapter 1. Getting Started with Enterprise PowerShell Scripting

The PowerShell language was developed to provide engineers with a method to quickly automate the provisioning and management of environments. In the last decade, PowerShell's use has greatly expanded, to encompass the setup and configuration of a myriad of hardware and software systems. Since third-party manufacturers are creating PowerShell modules to control their systems, PowerShell is becoming the automation language of choice. It is being used to configure multiple systems from multiple manufacturers, with a single set of PowerShell code.

Creating scripts for enterprise environments requires a robust scripting framework. A scripting framework consists of reusable code that you can leverage for a large majority of your scripts. This framework needs to be efficient, reliable, and secure. It must also provide logging capabilities, leverage answer files, and be flexible for execution on a wide variety of systems.

As you are exploring this book, you will learn a large number of tested and industry-proven scripting techniques. The examples you create will be applied at the end of the book in a Windows server scanning script. This will enable you to quickly integrate new sections of code into your own scripts, and will provide a trusted platform you can confidently deploy in your environment.

In this chapter, you will:

  • Learn about the Windows server scanning script created throughout this book
  • Explore performance optimizations implemented throughout each chapter
  • Review different components you should include in all of your PowerShell scripts
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