Pipeline object flow in PowerShell - Mini Project: Build & Apply

Pipeline Object Flow in PowerShell

📖 Scenario: You are working with PowerShell to process a list of files in a folder. You want to filter files by size and then display their names.

🎯 Goal: Build a PowerShell script that uses pipeline object flow to filter files larger than a certain size and then outputs their names.

📋 What You'll Learn

Create a list of files with their sizes

Set a size threshold variable

Use the pipeline to filter files larger than the threshold

Output the names of the filtered files

💡 Why This Matters

🌍 Real World

Filtering and processing files by size is common in system administration and automation tasks.

💼 Career

Understanding pipeline object flow is essential for writing efficient PowerShell scripts used in IT operations and automation.

1

Create a list of files with sizes

Create a variable called files that stores the output of Get-ChildItem for the current directory.

PowerShell

# Create a variable called files with Get-ChildItem output
# Your code here

Need a hint?

Use Get-ChildItem to get files and assign it to files.

2

Set a size threshold variable

Create a variable called sizeThreshold and set it to 10000 (bytes).

PowerShell

$files = Get-ChildItem -File
# Create a variable called sizeThreshold and set it to 10000
# Your code here

Need a hint?

Set sizeThreshold to 10000 to filter files larger than 10 KB.

3

Filter files larger than the threshold using pipeline

Use the pipeline to filter files where the Length property is greater than sizeThreshold. Store the result in a variable called largeFiles.

PowerShell

$files = Get-ChildItem -File
$sizeThreshold = 10000
# Filter files larger than sizeThreshold and store in largeFiles
# Your code here

Need a hint?

Use Where-Object with $_ to filter files by size.

4

Output the names of the filtered files

Use the pipeline to output the Name property of each file in largeFiles.

PowerShell

$files = Get-ChildItem -File
$sizeThreshold = 10000
$largeFiles = $files | Where-Object { $_.Length -gt $sizeThreshold }
# Output the Name property of each file in largeFiles
# Your code here

Need a hint?

Use ForEach-Object to output the Name of each file.