Logical Operators

Logical operators in PowerShell are used to combine or negate Boolean expressions and return a Boolean value ($True or $False) based on the result. PowerShell supports the following logical operators:

1. And (-and): Returns $True if both expressions are $True.

2. Or (-or): Returns $True if either expression is $True.

3. Not (-not): Negates the expression and returns $True if the expression is $False.

Logical operators are typically used in conjunction with comparison operators to create more complex expressions. For example, the following code uses the -and operator to combine two comparisons:

$a = 10
$b = 5
$c = 8
$a -gt $b -and $a -gt $c

This code will return $True if both comparisons are $True (i.e., if $a is greater than both $b and $c).

Logical operators can also be used with parentheses to create more complex expressions. For example, the following code uses parentheses to group the -and and -or operators:

$a = 10
$b = 5
$c = 8
($a -gt $b) -and ($b -lt $c -or $a -gt $c)

This code will return $True if the first comparison is $True AND either the second comparison is $True OR the third comparison is $True.

Overall, logical operators are an essential tool for creating complex Boolean expressions in PowerShell scripts.