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menu_book Course Curriculum (PowerShell Complete Course) expand_more

Language Basics

Variables String interpolation Here-strings Arrays Hashtable literals Ordered dictionaries Type casts Range operator Comparison operators Logical operators

Pipeline & Objects

Pipeline basics Where-Object ForEach-Object Select-Object Sort-Object Group-Object Measure-Object Tee-Object Custom objects Calculated properties

Control Flow

if elseif else switch foreach statement for loop while loop do while loop break continue return trap

Functions

Function declaration Parameters Mandatory parameters Default parameter values Parameter validation Pipeline input begin process end Splatting Advanced functions CmdletBinding

Files & Data

Get-Content Set-Content Import-Csv Export-Csv ConvertFrom-Json ConvertTo-Json Test-Path Join-Path Get-ChildItem Resolve-Path

Errors & Diagnostics

try catch finally throw ErrorAction ErrorVariable Write-Error Write-Warning Write-Verbose Write-Debug Get-Error $LASTEXITCODE

Modules & Remoting

Import-Module Export-ModuleMember Module-qualified commands Get-Command Get-Help Invoke-Command Enter-PSSession New-PSSession Copy-Item -ToSession Using scope modifier

Automation & System

Start-Job Receive-Job ForEach-Object -Parallel Start-Process Get-Process Get-Service Environment variables Registry provider Scheduled task action SecureString

PowerShell Complete Course / Pipeline & Objects

ForEach-Object

Learn ForEach-Object in PowerShell with a construct-specific explanation, a unique example, a practical boundary, and a mastery check.

10 min read • Beginner

ForEach-Object is an atomic PowerShell topic inside Pipeline & Objects. The example below uses the actual construct named by the lesson rather than a generic placeholder.

Focus on what ForEach-Object changes: the input, binding, control path, object state, collection, runtime effect, or language contract. Then alter one value and verify that the behavior changes for a reason specific to this feature.

Topic-specific example

powershell-02-03-foreach-object.ps1

powershell Try It Live

1..4 | ForEach-Object { $_ * $_ }

Edge case / engineering note

Pay attention to the contract exposed by the type, which members belong to instances versus the type itself, and what dispatch occurs at runtime.

Content source & attribution

Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

ForEach-Object Mastery Check →