Course M55039 Windows PowerShell Scripting and Toolmaking
This three- to five-day instructor-led is intended for IT professionals who are interested in furthering their skills in Windows PowerShell and administrative automation. The course assumes a basic working knowledge of PowerShell as an interactive command-line shell, and teaches students the correct patterns and practices for building reusable, tightly scoped units of automation.
After completing this course, students will be able to:
- Describe the correct patterns for building modularized tools in Windows PowerShell
- Build highly modularized functions that comply with native PowerShell patterns
- Build controller scripts that expose user interfaces and automate business processes
- Manage data in a variety of formats
- Write automated tests for tools
- Debug tools
Audience Profile
This course is intended for administrators in a Microsoft-centric environment who want to build reusable units of automation, automate business processes, and enable less-technical colleagues to accomplish administrative tasks.
Before attending this course, students must have:
- Experience at basic Windows administration
- Experience using Windows PowerShell to query and modify system information
- Experience using Windows PowerShell to discover commands and their usage
- Experience using WMI and/or CIM to query system information
- Start with a Command
- Why start with a command?
- Discovery and experimentation
- Start with a command
- Build a Basic Function and Start with a basic function
- Create a script module
- Check prerequisites
- Run the new command
- Build a basic function and module
- Adding CmdletBinding and Parameterizing
- About CmdletBinding and common parameters
- Accepting pipeline input
- Mandatory-ness
- Parameter validation
- Parameter aliases
- Adding CmdletBinding and Parameterizing
- Emitting Objects as Output
- Assembling information
- Constructing and emitting output
- Quick tests
- Emitting objects as output
- An Interlude: Changing Your Approach
- Examining a script
- Critiquing a script
- Revising the script
- Using Verbose, Warning, and Informational Output
- Knowing the six channels
- Adding verbose and warning output
- Doing more with verbose output
- Informational output
- Using Verbose, Warning, and Informational Output
- Comment-Based Help
- Where to put your help
- Getting started
- Going further with comment-based help
- Broken help
- Comment-based help
- Handling Errors
- Understanding errors and exceptions
- Bad handling
- Two reasons for exception handling
- Handling exceptions in our tool
- Capturing the actual exception
- Handling exceptions for non-commands
- Going further with exception handling
- Deprecated exception handling
- Handling errors
- Basic Debugging
- Two kinds of bugs
- The ultimate goal of debugging
- Developing assumptions
- Write-Debug
- Set-PSBreakpoint
- The PowerShell ISE
- Basic debugging
- Going Deeper with Parameters
- Parameter positions
- Validation
- Multiple parameter sets
- Value from remaining arguments
- Help messages
- Aliases
- More CmdletBinding
- Writing Full Help
- External help
- Using PlatyPs
- Supporting online help
- “About” topics
- Making your help updatable
- Writing full help
- Unit Testing Your Code
- Sketching out the test
- Making something to test
- Expanding the test
- Going further with Pester
- Unit testing your code
- Extending Output Types
- Understanding types
- The Extensible Type System
- Extending an object
- Using Update-TypeData
- Analyzing Your Script
- Performing a basic analysis
- Analyzing the analysis
- Analyzing your script
- Publishing Your Tools
- Begin with a manifest
- Publishing to PowerShell Gallery
- Publishing to private repositories
- Publishing your tools
- Basic Controllers: Automation Scripts and Menus
- Building a menu
- Using UIChoice
- Writing a process controller
- Basic controllers
- Proxy Functions
- A proxy example
- Creating the proxy base
- Modifying the proxy
- Adding or removing parameters
- Proxy functions
- Working with XML Data
- Simple: CliXML
- Importing native XML
- ConvertTo-XML
- Creating native XML from scratch
- Working with XML
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