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  • Book Overview & Buying PowerShell Troubleshooting Guide
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PowerShell Troubleshooting Guide

PowerShell Troubleshooting Guide

By : Michael Shepard
4.7 (3)
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PowerShell Troubleshooting Guide

PowerShell Troubleshooting Guide

4.7 (3)
By: Michael Shepard
Buy this Book

Overview of this book

The techniques in this book apply to beginners who have just started to learn PowerShell, as well as advanced scripters who have a good grasp of the language.
Table of Contents (10 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
Lock Free Chapter
1
1. PowerShell Primer
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1. PowerShell Primer
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Introduction
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Cmdlets
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Functions
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Scripts
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Pipelines
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Variables
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Modules
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Further reading
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Summary
2
2. PowerShell Peculiarities
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2. PowerShell Peculiarities
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PowerShell strings
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Function output
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Pipeline processing
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PowerShell error handling
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Further reading
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Summary
3
3. PowerShell Practices
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3. PowerShell Practices
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Filter left
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Format right
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Comment-based help
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Using Write-* cmdlets
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Further reading
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Summary
4
4. PowerShell Professionalism
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4. PowerShell Professionalism
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Naming conventions
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Modularization
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Version control
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Unit testing
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Further reading
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Summary
5
5. Proactive PowerShell
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5. Proactive PowerShell
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Error handling
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CmdletBinding()
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SupportsShouldProcess
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Parameter value validation
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Pipeline input
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Pipelines and function execution
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Parameter type transformation
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#REQUIRES statements
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Set-StrictMode and Set-PSDebug -strict
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Further reading
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Summary
6
6. Preparing the Scripting Environment
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6. Preparing the Scripting Environment
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Validating operating system properties
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Validating service status
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Validating disk and memory availability
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Validating network connectivity
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Further reading
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Summary
7
7. Reactive Practices – Traditional Debugging
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7. Reactive Practices – Traditional Debugging
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Reading error messages
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Using Set-PSDebug
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Debugging in the console
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Debugging in the ISE
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Event logs
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The PSDiagnostics module
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Using –confirm and –whatif
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Reducing input set
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Using Tee-Object to see intermediate results
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Replacing the foreach loop with the foreach-object cmdlet
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Further reading
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Summary
8
8. PowerShell Code Smells
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8. PowerShell Code Smells
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Code smells
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Language-agnostic code smells
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PowerShell-specific code smells
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Missing Param() statements
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Homegrown common parameters
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Unapproved verbs
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Accumulating output objects
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Sequences of assignment statements
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Using untyped or [object] parameters
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Static analysis tools – ScriptCop and Script Analyzer
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Further reading
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Summary
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Index
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Index

Chapter 6. Preparing the Scripting Environment

Writing scripts carefully and leveraging the PowerShell language is important, but deploying those scripts into an uncertain environment can cause any number of headaches. Validating that the scripting environment is configured as expected will eliminate many of the potential errors that might otherwise occur. Several methods to check the existing configuration will be presented in this chapter. Many of these techniques are also useful for routine validation after maintenance (patching, upgrading, and so on). In this chapter, we will cover the following topics:

  • Validating the operating system (OS) version and 32/64-bit
  • Validating the service status
  • Validating disk and memory availability
  • Validating network connectivity
CONTINUE READING
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Tech Concepts
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Programming languages
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PowerShell Troubleshooting Guide
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