ForEach-Object for iteration in PowerShell - Mini Project: Build & Apply

Using ForEach-Object for Iteration in PowerShell

📖 Scenario: You work in a small office where you need to process a list of employee names to send them a welcome message. You want to automate this task using PowerShell.

🎯 Goal: Build a PowerShell script that uses ForEach-Object to iterate over a list of employee names and print a welcome message for each.

📋 What You'll Learn

Create a list of employee names in a variable called employees with exact names: 'Alice', 'Bob', 'Charlie'

Create a variable called greeting with the value 'Welcome'

Use ForEach-Object to iterate over employees and print a message combining greeting and each employee's name

Print the welcome messages as output

💡 Why This Matters

🌍 Real World

Automating repetitive tasks like sending messages or processing lists of data is common in office environments. PowerShell's ForEach-Object helps you do this efficiently.

💼 Career

Knowing how to use ForEach-Object is useful for system administrators and IT professionals who automate workflows and manage data in Windows environments.

1

Create the list of employees

Create a variable called employees and assign it an array with the exact strings: 'Alice', 'Bob', and 'Charlie'.

PowerShell

# Create the employees array
# Your code here

Need a hint?

Use @( ... ) to create an array in PowerShell.

2

Add a greeting message variable

Create a variable called greeting and set it to the string 'Welcome'.

PowerShell

$employees = @('Alice', 'Bob', 'Charlie')
# Create the greeting variable
# Your code here

Need a hint?

Use = to assign a string to a variable.

3

Use ForEach-Object to print welcome messages

Use ForEach-Object to iterate over $employees. For each employee, print a message combining $greeting and the employee's name using Write-Output. Use $_ to represent the current employee inside the script block.

PowerShell

$employees = @('Alice', 'Bob', 'Charlie')
$greeting = 'Welcome'
# Use ForEach-Object to print welcome messages
# Your code here

Need a hint?

Use the pipeline | to send $employees to ForEach-Object. Inside the script block, use Write-Output "$greeting $_" to print the message.

4

Display the welcome messages

Run the script to display the welcome messages for each employee.

PowerShell

$employees = @('Alice', 'Bob', 'Charlie')
$greeting = 'Welcome'
$employees | ForEach-Object { Write-Output "$greeting $_" }
# Run the script to show output

Need a hint?

Just run the script. You should see each welcome message printed on its own line.