Why file management is core to scripting in PowerShell - Challenge Your Understanding

Challenge - 5 Problems

💻 Command Output

intermediate

What is the output of this PowerShell command?

Consider the following command that lists files in a directory and filters by extension. What output will it produce?

PowerShell

Get-ChildItem -Path . -Filter *.txt | Select-Object -ExpandProperty Name

A Outputs the full path of all files in the current directory

B Lists all files and folders in the current directory, including subdirectories

C Shows an error because -Filter cannot be used with Get-ChildItem

D Lists all filenames with .txt extension in the current directory, one per line

💡 Hint

Think about what -Filter and Select-Object do in this command.

Get-ChildItem with -Filter *.txt lists only files ending with .txt. Select-Object -ExpandProperty Name extracts just the filenames, not full paths or folders.

🧠 Conceptual

intermediate

Why is file management important in scripting?

Which of the following best explains why file management is a core skill in scripting?

A Because scripts often need to read, write, or organize files to automate tasks

B Because scripts only work with files and cannot interact with other system parts

C Because file management is the only way to run scripts on a computer

D Because scripts must always delete files to free up space

💡 Hint

Think about what tasks scripts automate in daily computer use.

Scripts automate many tasks involving files like backups, data processing, or organizing. Managing files is essential to these tasks.

🔧 Debug

advanced

Identify the error in this PowerShell script snippet

This script tries to copy all .log files from one folder to another but fails. What is the error?

PowerShell

Copy-Item -Path C:\Logs\*.log -Destination C:\BackupLogs -Recurse

A The -Recurse parameter is invalid here because wildcards with -Path do not support recursion

B The destination path must be enclosed in quotes

C The script is missing a -Force parameter to overwrite files

D The source path should use forward slashes instead of backslashes

💡 Hint

Check how wildcards and recursion work together in Copy-Item.

Using wildcards with -Path disables recursion. To recurse, you must specify the folder path without wildcards and use -Filter instead.

🚀 Application

advanced

Which script snippet correctly renames all .txt files by adding a prefix?

You want to add the prefix 'OLD_' to all .txt files in a folder. Which snippet does this correctly?

A Get-ChildItem -Filter *.txt | Rename-Item -NewName {"OLD_" + $_.Name}

B Get-ChildItem -Filter *.txt | Rename-Item -NewName {"OLD_" + $_.BaseName + $_.Extension}

C Get-ChildItem -Filter *.txt | Rename-Item -NewName {"OLD_" + $_}

D Get-ChildItem -Filter *.txt | Rename-Item -NewName {"OLD_" + $_.FullName}

💡 Hint

Consider how to build the new filename correctly including extension.

Option B correctly concatenates 'OLD_' with the base filename and the extension. Option B tries to add prefix to full name which can cause errors. Options C and D use wrong properties.

📝 Syntax

expert

What error does this PowerShell script produce?

Analyze this script that attempts to create a directory if it doesn't exist: if (!(Test-Path -Path C:\Data)) { New-Item -ItemType Directory -Path C:\Data } What happens when you run it?

A It throws a runtime error because New-Item requires -Force

B It throws a syntax error due to missing semicolon

C It runs successfully and creates the directory if missing

D It fails because Test-Path cannot be negated with !

💡 Hint

Check if the syntax and commands are valid PowerShell.

The script uses valid syntax. ! negates the boolean result of Test-Path. New-Item creates the directory if it doesn't exist. No errors occur.