book

Windows PowerShell for Developers

Name: Windows PowerShell for Developers
Author: Douglas Finke
ISBN: 9781449322663

by Douglas Finke

July 2012

Intermediate to advanced

210 pages

4h 33m

English

O'Reilly Media, Inc.

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Windows Powershell for Developers
Dedication
Preface
AudienceAssumptions This Book MakesContents of This BookConventions Used in This BookUsing Code ExamplesAvailable for DownloadWe’d Like to Hear from YouSafari® Books OnlineAcknowledgmentsAnd Now, the Small Village of Folks Who Helped, Inspired, and Supported Me
1. Introduction
This Is Just the BeginningWhy Use PowerShellThere’s a New Game in TownAn Underutilized Development Tool
2. Getting Started
Installing PowerShellChecking the PowerShell VersionInteractivity, the Key to PowerShellRunning a PowerShell ScriptChanging the Execution Policy from the Command LineRemoteSigned is good for youRunning scripts with the execution policy set to RestrictedNow we’re set to run a scriptPowerShell ISEOther PowerShell EditorsPowerShell and Visual StudioThe PowerShell CommunityThe Future of PowerShell on Windows 8Summary
3. The Dime Tour
The Object Pipeline: The Game ChangerAutomation ReferencesSemicolonsReturn StatementsDatatypesException HandlingBreakContinueTry/Catch/FinallyQuoting RulesPowerShell Subexpressions in StringsHere-StringsGreat Code Generation TechniquesC# CodeClosures, Functions, and LambdasScriptblocks, Dynamic Languages, and Design PatternsArraysCreating an Empty ArrayAdding an Array ItemRetrieving an Element from an ArrayArray SlicingFinding Array ElementsReversing an ArrayAssigning Values to Multiple Variables in an ArrayParentheses and CommasHash TablesCreating an Empty Hash TableAdding a Hash Table ItemInitializing a Hash Table with ItemsConcatenating Hash TablesGet-MemberFiltering with Get-MemberUsing Get-Member with CollectionsInject a GUI into the PowerShell Command LineNew-ObjectLaunching Internet ExplorerCreating a New PowerShell ObjectPowerShell v3 is more pithyUsing the .NET FrameworkAdd-MemberAdd-TypeCompiling C# on the FlyNewing Up the ClassCalling the Add Method on MyMathClassWait, I Don’t Have the Source“What Does % Do?” and Other AliasesModulesSummary
4. Accelerating Delivery
Scanning for const DefinitionsReading a Single C# FileUsing Select-StringReading C# Files in a DirectoryWorking with Template EnginesThe EngineA Single VariableMultiple VariablesMultiple TemplatesComplex LogicUML Style SyntaxReading XMLBonus RoundGenerating PowerShell Functions from C# MethodsGet ParametersPulling It All TogetherCalling PowerShell Functions from C#Overriding C# Methods with PowerShell FunctionsThe BreakdownLooking for PowerShell FunctionsExtracting Metadata and Generating C#The PowerShell ModuleTesting It AllSummary
5. Add PowerShell to Your GUI
Embedding PowerShell in your C# ApplicationBeaver Music ApplicationPowerShell ConsoleFoundational FunctionsNew-AlbumAdd-AlbumImport-CsvGet-Album and Clear-AlbumManaging Applications Better with PowerShellImporting Albums from the WebFunction Get-AlbumFromWebPowerShell v3Out-GridViewExport-ToExcelInteracting with MEFDiscovering the executable commandsShow-NewAlbumDialogImplementing Performance CountersGet-PrivateBytesGet-YahooMusicWiring a Textbox to Execute PowerShell CodeWorking in the PreviewKeyDownRunning Script and Debugging the C#Getting the PowerShell Console in Your AppPSConfig.ProfilePSConfig.AddVariableThe PowerShell Console CodePS.csPSConfig.csSummary
6. PowerShell and the Internet
Net.WebClientWrapping Code in a PowerShell FunctionReading CSV-Formatted Data from the WebReading XML-Formatted Data from the WebThe Structure of XML DataUS Government Data SourcesInvoke-RestMethodDetecting XMLDetecting JSONPowerShell and The New York Times Semantic APIReading The New York Times, part 1Reading The New York Times, part 2New-WebServiceProxyStock WebServiceDig a Little DeeperInvoke-WebRequestPowerShell and GoogleThe target HTMLPowerShell and BingPowerShell and the Twitter APISummary
7. Building GUI Applications in PowerShell
Why a Chapter About GUIs?Answer: Two Lines of CodePowerShell and WinFormsPowerShell, ShowUI, and the Twitter APIA Twitter GUI ApplicationThe CodeShowUI Video PlayerSummary

8. DLLs, Types, Properties, Methods, and Microsoft Roslyn
Sending Text to the ClipboardTranscoding C# to PowerShellFirst, the C#Intermediate PowerShellResultsConverting JSON to PowerShellMicrosoft’s RoslynMicrosoft Roslyn and PowerShellUsing PowerShell to Display Visual Studio DetailRoslyn’s Document MethodsPowerShell Roslyn Class ViewerHow It Works at a High LevelSummary
9. Writing Little Languages in PowerShell
Adding a New Construct to PowerShellPowerShell: A Better XMLBut Wait—There’s MoreBuilding the New-ToDoList functionBuilding the New-ToDoItem functionWhere to put this function?Invoking the script blockThe New-ToDoItem BodyPutting It All TogetherThe Little Language in ActionIs It Worth Creating Your Own Little Language?GraphvizGraphviz “Hello World”Hello World VisualA PowerShell DSL as a façade to GraphVizBuilding Add-EdgeBuilding New-GraphEmitting output from New-GraphMix and Match PowerShell and GraphVizKick It Up a Notch: New-Graph Is an Internal DSLGraphing the Companies from Get-ProcessSummary
10. PowerShell, COM, and More
Opening a File in Excel Using Invoke-ItemWorking Invoke-Item into a PowerShell ScriptCalling an Excel FunctionCreating an Excel COM InstanceDiscovering Available Excel FunctionsCalling More Excel FunctionsAutomating Excel from PowerShellMaking Excel VisibleCreating a Workbook and WorksheetsPutting the Date in a Cell in an Excel Worksheet from PowerShellSetting Up Pivot Tables in ExcelBuilding an Excel Pivot Table in PowerShellDiscovering Other COM Applications to AutomateAutomating Internet Explorer as a COM ApplicationSummary
11. PowerShell Version 3
PowerShell WorkflowsPowerShell Script-Based WorkflowRunning the WorkflowRunning the Workflow on Other BoxesDiscovering More About Your WorkflowVisual Studio WorkflowImport-Module on a XAML workflowGetting performance counters in parallelWhy workflows rockUsing PowerShell with Web Data: Converting to and from JSONConverting JSON to PowerShell Objects and Back AgainWhat If a Web/REST Service Returns JSON?Creating an Instance of a Microsoft .NET Framework ObjectGet-Content –TailISE v3Out-GridView and the -PassThru ParameterScheduling JobsInvoke-WebRequest and Invoke-RestMethodPowerShell v3 Items That Are a Must-SeeShow-CommandLess Typing for ForEach and WhereExecute PowerShell Commands from the WebWindows PowerShell Management ODATA IIS ExtensionsSummary
A. Productive PowerShell
Getting Automation ApprovedSaving Time with AutomationAdding Aliases to Your PowerShell ProfileAdding Variables and Functions to Your PowerShell ProfileThe ql FunctionAdding Variables to $ProfileAdding Custom PowerShell FunctionsQuick Access to Launching Visual Studio SolutionsRemote Desktop ConnectionStarting Another PowerShell SessionStart-Process Can Do MoreUsing PowerShell’s TokenizerPowerShell and Older ToolsSubversionDisplaying SVN info on your PowerShell promptThe scriptFaster, Faster—The Light Is Turning RedSlowTrainFastTrainForEach-Object Versus ForEach StatementSummary
B. Running PowerShell with the .NET 4.0 Runtime
About the Author
Copyright

Overview

Want to perform programming tasks better, faster, simpler, and make them repeatable? Take a deep dive into Windows PowerShell and discover what this distributed automation platform can do. Whether you’re a .NET developer or IT pro, this concise guide will show you how PowerShell’s scripting language can help you be more productive on everyday tasks.

Quickly learn how to create PowerShell scripts and embed them into your existing applications, write "little languages" to solve specific problems, and take charge of your code. This book includes example scripts that you can easily pull apart, tweak, and then use in your own PowerShell and .NET solutions.

Slice and dice text, XML, CSV, and JSON with ease
Embed PowerShell to provide scripting capabilities for your C# apps
Create GUI applications five to ten times faster with less code
Leverage PowerShell’s capabilities to work with the Internet
Interact with DLLs and create objects, automatically display properties, and call methods in live interactive sessions
Build domain-specific languages (DSLs) and vocabularies to express solutions more clearly
Work with Microsoft Office via the Component Object Model (COM)
Discover PowerShell v3 features included with Windows 8 and Windows Server 2012

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