Why file management is core to scripting in PowerShell - See It in Action

Why file management is core to scripting

📖 Scenario: You are working as an assistant to organize files in a folder. You want to learn how to manage files using a script to save time and avoid mistakes.

🎯 Goal: Build a simple PowerShell script that creates a list of files, sets a filter for file size, selects files larger than the filter, and then displays those files. This shows how file management is a key part of scripting.

📋 What You'll Learn

Create a list of files with their sizes

Set a size filter variable

Use a loop or filtering to select files larger than the filter

Print the selected files

💡 Why This Matters

🌍 Real World

Automating file management saves time and reduces errors when handling many files, like cleaning up logs or organizing documents.

💼 Career

Many IT and automation jobs require scripting to manage files efficiently, making this skill essential for system administrators and developers.

1

Create a list of files with sizes

Create a variable called files that contains these exact file names and sizes: file1.txt with size 1200, file2.log with size 800, and file3.csv with size 1500. Use a list of custom objects with properties Name and Size.

PowerShell

# Your code here

Need a hint?

Use @() to create an array and [PSCustomObject] to create objects with properties.

2

Set a size filter variable

Create a variable called sizeFilter and set it to 1000. This will be the minimum file size to select.

PowerShell

$files = @(
    [PSCustomObject]@{Name='file1.txt'; Size=1200},
    [PSCustomObject]@{Name='file2.log'; Size=800},
    [PSCustomObject]@{Name='file3.csv'; Size=1500}
)
# Your code here

Need a hint?

Just assign the number 1000 to the variable sizeFilter.

3

Select files larger than the size filter

Create a variable called largeFiles that contains only the files from files where the Size property is greater than sizeFilter. Use the Where-Object cmdlet with a script block.

PowerShell

$files = @(
    [PSCustomObject]@{Name='file1.txt'; Size=1200},
    [PSCustomObject]@{Name='file2.log'; Size=800},
    [PSCustomObject]@{Name='file3.csv'; Size=1500}
)

$sizeFilter = 1000

# Your code here

Need a hint?

Use Where-Object with { $_.Size -gt $sizeFilter } to filter files.

4

Display the selected large files

Use Write-Output to print the Name and Size of each file in largeFiles. Use a foreach loop with variables file.

PowerShell

$files = @(
    [PSCustomObject]@{Name='file1.txt'; Size=1200},
    [PSCustomObject]@{Name='file2.log'; Size=800},
    [PSCustomObject]@{Name='file3.csv'; Size=1500}
)

$sizeFilter = 1000

$largeFiles = $files | Where-Object { $_.Size -gt $sizeFilter }

# Your code here

Need a hint?

Use a foreach loop and Write-Output to print each file's name and size.