Advanced PowerShell Scripting Course Content
Goal: Build scripts that look, feel, and act like native Windows cmdlets.
- Advanced Functions: Converting scripts into "Advanced Functions" using the [CmdletBinding()] attribute
- Parameter Validation: Implementing [ValidateSet()], [ValidatePattern()], and [ValidateNotNullOrEmpty()]
- The Pipeline Deep Dive: Mastering Begin{}, Process{}, and End{} blocks for high-performance pipeline input
- Dynamic Parameters: Creating parameters that change based on the value of other inputs
Goal: Package your tools for distribution across a team or enterprise.
- Script Modules (.psm1): Structuring code into logical modules
- Module Manifests (.psd1): Defining versioning, dependencies, and exported members
- Public vs. Private Functions: Using internal "helper" functions while only exposing specific tools to the user
- PSProviders & PSDrives: Navigating the registry, certificates, and environment variables like file systems
Goal: Speed up execution and handle massive datasets.
- Multi-threading & Parallelism:
- ForEach-Object -Parallel (PowerShell 7+)
- Runspaces and RunspacePools: The "pro" way to handle background tasks without the overhead of Jobs
- Advanced Error Handling:
- Custom Exception classes
- Mastering $ErrorActionPreference and $Error[0]
- Performance Tuning: Using Measure-Command to identify bottlenecks and optimizing .NET methods for speed