First PowerShell command - Practice Problems & Coding Challenges

Challenge - 5 Problems

💻 Command Output

intermediate

What is the output of this PowerShell command?

Consider the following PowerShell command:

Write-Output "Hello, World!"

What will this command display in the console?

PowerShell

Write-Output "Hello, World!"

A Nothing is displayed

B Write-Output "Hello, World!"

C Error: Command not found

D Hello, World!

💡 Hint

Write-Output sends the text to the console.

The Write-Output command prints the string to the console exactly as given.

💻 Command Output

intermediate

What does this PowerShell command output?

Look at this command:

Get-Date -Format "yyyy-MM-dd"

What kind of output will it produce?

PowerShell

Get-Date -Format "yyyy-MM-dd"

A The current time in format like 14:30:00

B An error about invalid format

C The current date in format like 2024-06-15

D The full date and time in default format

💡 Hint

The -Format parameter controls how the date is shown.

Get-Date with -Format "yyyy-MM-dd" outputs only the date in year-month-day format.

📝 Syntax

advanced

Which PowerShell command correctly assigns a string to a variable?

You want to store the text "Hello" in a variable named greeting. Which command is correct?

A $greeting = Hello

B $greeting = "Hello"

C greeting = "Hello"

D $greeting := "Hello"

💡 Hint

Strings need quotes and variables start with $ in PowerShell.

In PowerShell, variables start with $, and strings must be in quotes.

🔧 Debug

advanced

What error does this PowerShell command produce?

Examine this command:

Write-Output Hello World

What happens when you run it?

A Outputs: Hello World

B Outputs: Hello

C Outputs: HelloWorld

D Error: Missing quotation marks

💡 Hint

Write-Output can take multiple arguments separated by spaces.

Write-Output outputs all arguments separated by spaces, so it prints Hello World.

🚀 Application

expert

How many items does this PowerShell command output?

Consider this command:

1..5 | ForEach-Object { $_ * 2 }

How many numbers will be output?

PowerShell

1..5 | ForEach-Object { $_ * 2 }

A 5

B 1

C 0

D 10

💡 Hint

1..5 creates a list of 5 numbers, each doubled.

The command processes numbers 1 to 5, doubling each, so outputs 5 numbers.