Question

Task 10: Creating functions

In Windows PowerShell, you can declare functions. Functions are reusable pieces of code that can be called as many times as you want after you declare them.

In this step, you will declare a function, learn about using different types of parameters, and specify default values for these parameters.

1. In the Windows PowerShell ISE, press CTRL+N.

2. In the script pane, type the following code.

function Get-Soup ( [switch] $please, [string] $soup = "chicken noodle" ) { if ($please) { "Here's your $soup soup" } else { "No soup for you!" } } This command declares a Get-Soup function which will receive two parameters, $please and $soup.

3. To run the script, press F5, and then click the Script arrow to hide the script pane.

It is not necessary to save a script before executing it in the ISE. This makes it easy to use the script pane to quickly test commands and code snippets.

4. To call the script with no parameters, in the command pane, type the following command, and then press ENTER.

PS >Get-Soup

Department of Computer Science Spring 2019

5. To call the Get Soup function with the $please parameter, type the following command, and then press ENTER.

To specify a parameter declared as a switch, specify –parameter name after the function name.

PS >Get-Soup -please

6. To call Get-Soup specifying a value for $soup, type the following command, and then press ENTER.

PS >Get-Soup –please tomato

SHOW ALL INPUT AND OUTPUT AS WELL AS A SCREEN SHOT WITH ALL RESULTS

Answer 1

All the inputs to be inserted in the command pane are highlighted as bold text below

1. Open Windows PowerShell ISE by searching in the search bar

I the window Press ctrl+N and it would open script pane.

2. In the script Pane type the following code:

function Get-Soup ( [switch] $please, [string] $soup = "chicken noodle" )
{
if ($please) {
"Here's your $soup soup"
}
else {
"No soup for you!"
}
}

3. To run the script press F5

4. To call the script with no parameters, in the command pane, type the following command, and then press ENTER.

PS >Get-Soup

5. To call the Get Soup function with the $please parameter, type the following command, and then press ENTER.

To specify a parameter declared as a switch, specify –parameter name after the function name.

PS >Get-Soup -please

6. To call Get-Soup specifying a value for $soup, type the following command, and then press ENTER.

PS >Get-Soup –please tomato