PowerShell Splatting: Pass Parameters Cleanly
Splatting passes parameter collections to commands using @ notation. Learn to clean up long command lines and build dynamic parameter sets.
Get-Date -Month "Month: March 2026"
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PowerShell Comment-Based Help: Document Your Functions
Comment-based help makes your functions discoverable with Get-Help. Learn the correct syntax for synopsis, parameters, and example sections.
PowerShell Dot Sourcing: Load Scripts into Current Session
Dot-sourcing runs a script in the current scope so its functions stay available. Learn when to use it, how it differs from calling a script, and pitfalls.
PowerShell Script Blocks: Use Code as a First-Class Object
Script blocks are reusable code objects in PowerShell. Learn to create, invoke, pass as arguments, and use them with Invoke-Command and ForEach-Object.
PowerShell Parameters: Advanced Function Parameters Guide
Advanced function parameters make PowerShell scripts user-proof. Learn Mandatory, ValidateSet, parameter sets, and pipeline input with examples.
PowerShell Out-File vs Export-Csv vs Redirect: Save Output
Save any PowerShell output to a file with Out-File, Export-Csv, or redirection. Learn encoding, append mode, and when each method is best.
PowerShell ForEach-Object vs foreach Statement: Full Comparison
PowerShell has two ways to iterate: the foreach statement and ForEach-Object. Learn the real differences in performance, streaming, and pipeline use.
PowerShell Group-Object: Group and Count Pipeline Data
Group-Object groups pipeline objects by any property and counts each group. Learn to build frequency reports and analyze data patterns.
PowerShell Measure-Object: Count, Sum, and Average Data
Measure-Object aggregates pipeline data with sum, average, min, max, and count. Learn to use it for disk reports, word counts, and number stats.
PowerShell Enum and Constants: Define Fixed Value Sets
Enums enforce valid values in PowerShell scripts. Learn to use built-in .NET enums, define custom enums, and validate parameters with them.
