Mastering Windows PowerShell Scripting - Second Edition

Common reserved variables

Refer to the following table:

Errors	$Error	$Error[0] # The last error
Formats the enumeration limit. Dictates the number of elements displayed for objects with properties based on arrays. The default is 4.	$FormatEnumerationLimit	$object = [PSCustomObject]@{Array = @(1, 2, 3, 4, 5)}$object # Shows 1, 2, 3, and 4$formatenumerationlimit = 1$object # Shows 1
Holds data of the current PowerShell host.	$Host	$host$host.UI.RawUI.WindowTitle
The matches found when using the -match operator.	$Matches	‘text’ –match ‘.*’$matches
The output field separator. The default is a single space. Dictates how arrays are joined when included in an expandable string.	$OFS	$arr = 1, 2, 3, 4“Joined based on OFS: ...