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PowerShell Troubleshooting Guide

You're reading from   PowerShell Troubleshooting Guide Minimize debugging time and maximize troubleshooting efficiency by leveraging the unique features of the PowerShell language

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Product type Paperback
Published in Nov 2014
Publisher
ISBN-13 9781782173571
Length 206 pages
Edition 1st Edition
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Author (1):
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Michael Shepard Michael Shepard
Author Profile Icon Michael Shepard
Michael Shepard
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Toc

Table of Contents (10) Chapters Close

Preface 1. PowerShell Primer FREE CHAPTER 2. PowerShell Peculiarities 3. PowerShell Practices 4. PowerShell Professionalism 5. Proactive PowerShell 6. Preparing the Scripting Environment 7. Reactive Practices – Traditional Debugging 8. PowerShell Code Smells Index

Debugging in the console


The Set-PSDebug cmdlet gives a good amount of detail, but getting to a particular point in the code requires you to add Set-PSDebug statements in the code (which you might not be able to do) or step through all of the code up until that point. Fortunately, there is another set of cmdlets that allows interactive debugging, the PSBreakPoint cmdlets:

  • Set-PSBreakPoint

  • Remove-PSBreakPoint

  • Get-PSBreakPoint

  • Enable-PSBreakPoint

  • Disable-PSBreakPoint

With Set-PSBreakpoint, it is easy to create a breakpoint to cause the execution to be suspended when a certain line is reached using the –Line parameter. One caveat is that the parameter sets including the –Line parameter, also include a mandatory script parameter that refers to a file on disk. This isn't much of a barrier in the console since we would generally be working with a script file.

Here's another sample script:

Write-Host "Script starting"
Foreach ($i in 1..10){
    Write-Host $i
    Write-Host "Inside the loop"
...
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