Changeable information Lesson 2 Creating a Parameterized Script Best practices Lab A Creating a Parameterized Script...

Transcription

1 Table of Contents Using this Course Manual... 7 Acknowledgements... 8 Module 01 Preparing for Scripting... 9 Lesson 1 Overview What is toolmaking? Is this course for you? Prerequisites PowerShell v Admin privileges Multiple computers Lab Environment Lesson 2 Preparing the Scripting Environment PowerShell s execution policy Running scripts Editing scripts Lesson 3 Understanding Variables and Operators What are variables? Quotation marks Object members and variables Parentheses Comparison Operators Lesson 4 Understanding Scripting Constructs and Scope One script, one pipeline Logical constructs If construct Switch construct Looping constructs Do...While construct ForEach construct For construct Break and Continue in constructs Pipelines vs. Script Constructs What is scope? Seeing scope in action Working out of scope Getting strict with scope Best practices for scope Conclusion Module 02 Parameterizing a Command Lesson 1 Designing Parameters

2 Changeable information Lesson 2 Creating a Parameterized Script Best practices Lab A Creating a Parameterized Script LAB 2A-ALFA LAB 2A-BRAVO LAB2A-CHARLIE Lesson 3 Creating a Parameterized Function Parameterizing a function Testing the function Dot sourcing Calling the function in the script Lab B Creating a Parameterized Function Conclusion Module 03 Script and Manifest Modules Lesson 1 Creating a Manifest Module Module location Module name Module contents Creating a script module Creating a module manifest Lab A Creating and Testing a Manifest Module Conclusion Module 04 Handling Errors Lesson 1 Designing Error Handling $ErrorActionPreference Setting the error action Saving the error Error handling v1: Trap Error Handling v2+: Try Catch Finally Providing some visuals Lab A Implementing Error Handling LAB4A-ALFA LAB4A-BRAVO LAB4A-CHARLIE Conclusion Module 05 Writing Commands that Use Pipeline Input and Output Lesson 1 Understanding Pipeline Parameter Binding How PowerShell passes data down the pipeline Plan A: Pipeline input ByValue Plan B: Pipeline input ByPropertyName

3 When things don t line up: custom properties Parenthetical commands Extracting the value from a single property Lesson 2 Implementing Pipeline Input Supporting pipeline input Lesson 3 Implementing Pipeline Output Splatting Adding More Data Sources Lab A Implementing Pipeline Input and Output LAB5A-ALFA LAB5A-BRAVO LAB5A-CHARLIE Conclusion Module 06 Creating Hierarchical Command Output Lesson 1 Designing Hierarchical Command Output Hierarchies and CSV: not a good idea Creating nested objects Working with nested objects Using Select-Object to expand child objects Using Format-Custom to expand an object hierarchy Using a ForEach loop to enumerate subobjects Using PowerShell s array syntax to access individual subobjects Lab A Implementing Hierarchical Command Output Conclusion Module 07 Script Debugging Lesson 1 Designing for Debugging Solving typos The real trick to debugging: expectations Dealing with logic errors: trace code Dealing with logic errors: breakpoints Seriously, have expectations Lab A Debugging Scripts Lab B Debugging Scripts Conclusion Module 08 Customizing Default Formatting Lesson 1 Designing Formatting Adding a type name to output objects Making a view Loading and debugging the view Backward compatibility Using the view

4 Adding the view to a module Lab A Implementing Custom Formatting LAB 8A-ALFA LAB8A-BRAVO Conclusion Module 09 Adding Advanced Parameter Attributes and Command Documentation Lesson 1 Designing Documentation Comment-based help Lab A Implementing Command Documentation LAB9A-ALFA LAB9A-BRAVO LAB9A-CHARLIE Lesson 2 Designing Advanced Parameter Attributes Making parameters mandatory Verbose output Parameter aliases Parameter validation Parameter help Lab B Implementing Advanced Parameter Attributes LAB9B-ALFA LAB9B-BRAVO LAB9B-CHARLIE Lesson 3 Designing Support for ShouldProcess The Confirm and WhatIf parameters Passthrough ShouldProcess Defining the impact level Implementing ShouldProcess Lab C Implementing Support for ShouldProcess Conclusion Module 10 Creating Controller Scripts Lesson 1 Designing Controller Scripts Controller Scripts for Processes Controller Scripts for User Interface Lab A Implementing Controller Scripts Conclusion Module 11 Creating HTML Reports Lesson 1 Designing HTML Reports Gathering the Information Building the HTML Briefly: The ConvertTo-HTML Cmdlet Going Further

5 Lab A Implementing HTML Reports Conclusion Module 12 PowerShell Workflow Lesson 1 Understanding Workflows Common parameters for workflows Activities and stateless execution Persisting state Suspending and resuming workflows Inherently remotable Parallelism General workflow design strategy Example workflow scenario Writing the workflow Workflows vs. functions Lab A Creating a Basic Workflow Conclusion Module 13 Working with XML Data Lesson 1 Understanding how PowerShell Uses XML XML Documents Reading XML Creating an XML-Reading Tool Modifying XML Nodes Adding XML Attributes and Nodes Lab A Working with XML Data Conclusion Module 14 Creating Proxy Functions Lesson 1 Designing Proxy Functions Creating the proxy function template Removing a parameter Adding a parameter Loading the proxy function Lab A Creating a Proxy Function Conclusion Module 15 PowerShell Toolmaking Lab A PowerShell Toolmaking