Platform-specific considerations in PowerShell - Mini Project: Build & Apply

Platform-specific considerations

📖 Scenario: You are writing a PowerShell script that needs to behave differently depending on the operating system it runs on. This is common when scripts must work on Windows, Linux, or macOS.

🎯 Goal: Build a PowerShell script that detects the platform it is running on and stores the platform name in a variable. Then, use this information to create a message that tells the user which platform the script detected.

📋 What You'll Learn

Create a variable called platform that stores the current operating system name.

Create a variable called message that uses platform to build a message string.

Use a switch statement to set platform based on the OS.

Print the message to the console.

💡 Why This Matters

🌍 Real World

Scripts often need to behave differently on Windows, Linux, or macOS. Detecting the platform helps automate tasks correctly.

💼 Career

Knowing how to write cross-platform scripts is valuable for system administrators and automation engineers who manage diverse environments.

1

Detect the operating system

Create a variable called osName that stores the value of [System.Environment]::OSVersion.Platform.

PowerShell

# Create a variable called osName to detect the platform
# Your code here

Need a hint?

Use [System.Environment]::OSVersion.Platform to get the platform identifier.

2

Set the platform variable

Create a variable called platform and initialize it with an empty string ''.

PowerShell

$osName = [System.Environment]::OSVersion.Platform
# Create a variable called platform and set it to an empty string
# Your code here

Need a hint?

Initialize platform as an empty string before setting it based on osName.

3

Use switch to assign platform name

Use a switch statement on $osName with cases 2 for 'Windows', 4 for 'Unix', 6 for 'MacOSX', and default for 'Windows'. Assign the matching string to $platform inside each case.

PowerShell

$osName = [System.Environment]::OSVersion.Platform
$platform = ''
# Use switch on $osName to set $platform to 'Unix', 'MacOSX', or 'Windows'
# Your code here

Need a hint?

The platform codes 2 mean Windows, 4 mean Unix (Linux), 6 means MacOSX, and anything else is Windows.

4

Print the platform message

Create a variable called message that uses a double-quoted string to say "The script is running on: $platform". Then print $message.

PowerShell

$osName = [System.Environment]::OSVersion.Platform
$platform = ''
switch ($osName) {
    2 { $platform = 'Windows' }
    4 { $platform = 'Unix' }
    6 { $platform = 'MacOSX' }
    default { $platform = 'Windows' }
}
# Create message and print it
# Your code here

Need a hint?

Use double quotes to allow variable expansion in the string. Use Write-Output to print.