Script modules vs binary modules in PowerShell - Hands-On Comparison

Understanding Script Modules vs Binary Modules in PowerShell

📖 Scenario: You are learning how to organize PowerShell code into reusable parts. There are two main ways: script modules and binary modules. Script modules are simple text files with PowerShell code. Binary modules are compiled code in DLL files. Understanding the difference helps you choose the right way to share your scripts.

🎯 Goal: You will create a simple script module example, then learn how to import and use it in PowerShell.

📋 What You'll Learn

Create a script module file with a simple function

Create a variable to hold the path to the script module

Import the script module using the path variable

Print the result of calling the function from the script module

💡 Why This Matters

🌍 Real World

PowerShell modules help system administrators and developers organize and reuse code efficiently across scripts and projects.

💼 Career

Knowing how to create and use script and binary modules is essential for automation, configuration management, and extending PowerShell functionality in professional IT roles.

1

Create a script module file with a function

Create a script module file named MyScriptModule.psm1 with a function called Get-Greeting that returns the string 'Hello from script module'. Write the exact function code inside the file.

PowerShell

# Create the function Get-Greeting inside MyScriptModule.psm1
# Your code here

Need a hint?

Use the function keyword to define Get-Greeting. The function should return the exact string.

2

Create a variable with the script module path

In a new PowerShell script, create a variable called $modulePath and set it to the string './MyScriptModule.psm1' which is the relative path to the script module file.

PowerShell

# Create $modulePath variable with './MyScriptModule.psm1'
# Your code here

Need a hint?

Use $modulePath = './MyScriptModule.psm1' to store the path as a string.

3

Import the script module using the path variable

Use the Import-Module command with the variable $modulePath to import the script module into your session.

PowerShell

$modulePath = './MyScriptModule.psm1'

# Import the module using Import-Module and $modulePath
# Your code here

Need a hint?

Use Import-Module $modulePath to load the module from the path.

4

Call the function and print the output

Call the function Get-Greeting and print its output using Write-Output.

PowerShell

$modulePath = './MyScriptModule.psm1'

Import-Module $modulePath

# Call Get-Greeting and print the result
# Your code here

Need a hint?

Use Write-Output (Get-Greeting) to show the greeting message.