Creating functions

In PowerShell, functions are created using the function keyword, followed by the function name and a set of curly braces {}. Inside the curly braces, you define the code that the function will execute when it is called.

Here is an example of a simple function that takes two parameters and returns their sum:

function Add-Numbers {
    param(
        [int]$num1,
        [int]$num2
    )
    return $num1 + $num2
}

In this example, the function is called Add-Numbers and takes two parameters, both of which are integers. Inside the function, the two parameters are added together using the + operator, and the result is returned using the return keyword.

To call this function, you simply use its name followed by the parameters you want to pass in, like this:

Add-Numbers -num1 5 -num2 7

This would return the value 12, which is the sum of 5 and 7.