The Big Book of PowerShell Gotchas

The Big Book of PowerShell Gotchas

The DevOps Collective, Inc.
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Table of Contents

The Big Book of PowerShell Gotchas

  • The Big Book of PowerShell Gotchas
  • Format right
  • Where is the ____ Command? I’ve Installed the Latest Version of PowerShell and Can’t Find it!
  • PowerShell.exe isn’t PowerShell
  • Accumulating Output in a Function
  • ForEach vs ForEach vs ForEach
  • Tab Completion
  • -Contains isn’t -Like
  • You Can’t Have What You Don’t Have
  • -Filter Values Diversity
  • Not Everything Produces Output
  • One HTML Page at a Time, Please
  • [Bloody] {Awful} (Punctuation)
  • Don’t+Concatenate+Strings
  • $ isn’t Part of the Variable Name
  • Use the Pipeline, not an Array
  • Backtick, Grave Accent, Escape
  • A Crowd isn’t an Individual
  • These aren’t Your Father’s Commands
  • Properties vs. Values
  • Remote Variables
  • New-Object PSObject vs. PSCustomObject
    • New-Object PSObject in v1.0
    • New-Object in PS 2.0
    • PSCustomObject in PowerShell v3.0
  • Running Something as the “Currently Logged-in User”
  • Commands that Need a User Profile May Fail When Run Remotely
  • Writing to SQL Server
  • Getting Folder Sizes
The Big Book of PowerShell Gotchas/