Logical operators

Logical operators are used to evaluate two or more comparisons or other operations that produce a Boolean (true or false) result.

The following logic operators are available:

• And: -and
• Or: -or
• Exclusive or: -xor
• Not: -not and !

And

The -and operator will returntrue if the value on the left-hand and right-hand side are both true.

For example, each of the following returns true:

$true -and $true 
1 -lt 2 -and "string" -like 's*' 
1 -eq 1 -and 2 -eq 2 -and 3 -eq 3 
(Test-Path C:\Windows) -and (Test-Path 'C:\Program Files') 

Or

The -or operator will return true if either the value on the left, or the value on the right, or both are true.

For example, each of the following returns true:

$true -or $true 
2 -gt 1 -or "something" -ne "nothing" 
1 -eq 1 -or 2 -eq 1 
(Test-Path C:\Windows) -or (Test-Path D:\Windows)

Exclusive or

The -xor operator will return true if either the value on the left is true, or the value on the right is true, but not both.

For example, each of the following returns true...