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

1. New-Object PSObject in v1.0
2. New-Object in PS 2.0
3. 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