book

Learn PowerShell Scripting in a Month of Lunches, Second Edition

Name: Learn PowerShell Scripting in a Month of Lunches, Second Edition
ISBN: 9781633438989

by Jeffery Hicks, Don Jones, James Petty

April 2024

Beginner to intermediate

336 pages

8h 51m

English

Manning Publications

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inside front cover
Praise for the First Edition
Learn PowerShell Scripting in a Month of Lunches
Copyright
dedication
contents
front matter
prefaceacknowledgmentsabout this bookWho should read this bookAbout the codeliveBook discussion forumabout the authors
Part 1.
1 Before you begin
1.1 What is toolmaking?1.2 Is this book for you?1.3 What you need for this book1.3.1 PowerShell version1.3.2 Administrative privileges1.3.3 Script editor1.4 How to use this book1.5 Expectations1.6 How to ask for helpSummary
2 Setting up your scripting environment
2.1 The operating system2.2 PowerShell2.3 Administrative privileges and execution policy2.4 Script editors2.5 Our lab environment2.6 Example code2.7 Your turnSummary

3 WWPD: What would PowerShell do?
3.1 One tool, one task3.2 Naming your tools3.3 Naming parameters3.4 Producing output3.5 Don’t assume3.6 Avoid innovationSummary
4 Review: Parameter binding and the PowerShell pipeline
4.1 The operating system4.2 It’s all in the parameters4.3 Pipeline: ByValue4.3.1 Introducing Trace-Command4.3.2 Tracing the ByValue parameter binding4.3.3 When ByValue fails4.4 ByPropertyName4.4.1 Let’s trace ByPropertyName4.4.2 When ByPropertyName fails4.4.3 Planning aheadSummary
5 Scripting language: A crash course
5.1 Comparisons5.1.1 Wildcards5.1.2 Collections5.1.3 Troubleshooting comparisons5.2 The If construct5.3 The ForEach construct5.4 The Switch construct5.5 The Do/While construct5.6 The For construct5.7 BreakSummary
6 The many forms of scripting (and which to choose)
6.1 Tools vs. controllers6.2 Thinking about tools6.3 Thinking about controllers6.4 Comparing tools and controllers6.5 Some concrete examples6.5.1 Emailing users whose passwords are about to expire6.5.2 Provisioning new users6.5.3 Setting file permissions6.5.4 Helping the help desk6.6 Control more6.7 LabSummary
7 Scripts and security
7.1 Security is number one7.2 Execution policy7.2.1 Execution scope7.2.2 Getting your policies7.2.3 Setting an execution policy7.3 PowerShell isn’t the default application7.4 Running scripts7.5 RecommendationsSummary
Part 2.
8 Always design first
8.1 Tools do one thing8.2 Tools are testable8.3 Tools are flexible8.4 Tools look native8.5 For example8.6 Your turn8.6.1 Start here8.6.2 Your task8.6.3 Our takeSummary
9 Avoiding bugs: Start with a command
9.1 What you need to run9.2 Breaking it down, and running it right9.3 Running commands and digging deeper9.4 Process matters9.5 Know what you need9.6 Your turn9.6.1 Start here9.6.2 Your task9.6.3 Our takeSummary
10 Building a basic function and script module
10.1 Starting with a basic function10.1.1 Designing the input parameters10.1.2 Writing the code10.1.3 Designing the output10.2 Creating a script module10.3 Prereq check10.4 Running the command10.5 Your turn10.5.1 Start here10.5.2 Your task10.5.3 Our takeSummary
11 Getting started with advanced functions
11.1 About CmdletBinding and common parameters11.1.1 Accepting pipeline input11.1.2 Mandatory-ness11.1.3 Parameter validation11.1.4 Parameter aliases11.1.5 Supporting –Confirm and –WhatIf11.2 Your turn11.2.1 Start here11.2.2 Your task11.2.3 Our takeSummary
12 Objects: The best kind of output
12.1 Assembling the information12.2 Constructing and emitting output12.3 A quick test12.4 An object alternative12.5 Enriching objects12.6 Your turn12.6.1 Start here12.6.2 Your task12.6.3 Our takeSummary
13 Using all the streams
13.1 Knowing the seven output streams13.2 Adding verbose and warning output13.3 Doing more with -Verbose13.4 Information output13.4.1 A detailed Information stream example13.5 Your turn13.5.1 Start here13.5.2 Your task13.5.3 Our takeSummary
14 Simple help: Making a comment
14.1 Where to put your help14.2 Getting started14.3 Going further with comment-based help14.4 Broken help14.5 Beyond comments14.6 Your turn14.6.1 Start here14.6.2 Your task14.6.3 Our takeSummary
15 Errors and how to deal with them
15.1 Understanding errors and exceptions15.2 Bad handling15.3 Two reasons for exception handling15.4 Handling exceptions in your tool15.5 Capturing the exception15.6 Handling exceptions for non-commands15.7 Going further with exception handling15.8 Your turn15.8.1 Start here15.8.2 Your task15.8.3 Our takeSummary
16 Filling out a manifest
16.1 Module execution order16.2 Creating a new manifest16.3 Examining the manifest16.3.1 Metadata16.3.2 The root module16.3.3 Prerequisites16.3.4 Scripts, types, and formats16.3.5 Exporting members16.4 Your turn16.4.1 Start here16.4.2 Your task16.4.3 Our takeSummary
Part 3.
17 Changing your brain when it comes to scripting
17.1 Example 117.1.1 The critique17.1.2 Our take17.1.3 Thinking beyond the literal17.2 Example 217.2.1 The walkthrough17.2.2 Our take17.3 Your turn17.3.1 Start here17.3.2 Your task17.3.3 Our takeSummary
18 Professional-grade scripting
18.1 Using source control18.2 Code clarity18.3 Effective comments18.4 Formatting your code18.5 Meaningful variable names18.6 Avoiding aliases18.7 Logic over complexity18.8 Providing help18.9 Avoiding Write-Host and Read-Host18.10 Sticking with single quotes18.11 Not polluting the global scope18.12 Being flexible18.13 Prioritizing security18.14 Striving for eleganceSummary
19 An introduction to source control with Git
19.1 Why source control?19.2 What is Git?19.2.1 Installing Git19.2.2 Git basics19.3 Repository basics19.3.1 Creating a repository19.3.2 Staging a change19.3.3 Committing a change19.3.4 Rolling back a change19.3.5 Branching and merging19.4 Using Git with VS Code19.5 Integrating with GitHubSummary
20 Pestering your script
20.1 The vision20.2 Problems with manual testing20.3 Benefits of automated testing20.4 Introducing Pester20.5 Coding to be tested20.6 What do you test?20.6.1 Integration tests20.6.2 Unit tests20.6.3 Don’t test what isn’t yours20.7 Writing a basic Pester test20.7.1 Creating a fixture20.7.2 Writing the first test20.7.3 Creating a mock20.7.4 Adding more tests20.7.5 Code coverageSummary
21 Signing your script
21.1 The significance of script signing21.2 A word about certificates21.3 Configure your script signing policy21.4 Code-signing basics21.4.1 Acquiring a code-signing certificate21.4.2 Trusting self-signed certificates21.4.3 Signing your scripts21.4.4 Testing script signaturesSummary
22 Publishing your script
22.1 The importance of publishing22.2 Exploring the PowerShell Gallery22.3 Other publishing options22.4 Before you publish22.4.1 Are you reinventing the wheel?22.4.2 Updating your manifest22.4.3 Getting an API key22.5 Ready, set, publish22.5.1 Managing revisions22.6 Publishing scripts22.6.1 Using the Microsoft script repository22.6.2 Creating ScriptFileInfo22.6.3 Publishing the script22.6.4 Managing published scriptsSummary
Part 4.
23 Squashing bugs
23.1 The three kinds of bugs23.2 Dealing with syntax bugs23.3 Dealing with results bugs23.4 Dealing with logic bugs23.4.1 Setting breakpoints23.4.2 Setting watches23.4.3 So much more23.4.4 Don’t be lazy23.5 Your turn23.5.1 Start here23.5.2 Your task23.5.3 Our takeSummary
24 Enhancing script output presentation
24.1 Our starting point24.2 Creating a default view24.2.1 Exploring Microsoft’s views24.2.2 Adding a custom type name to output objects24.2.3 Creating a new view file24.2.4 Adding the view file to a module24.3 Your turn24.3.1 Start here24.3.2 Your task24.3.3 Our takeSummary
25 Wrapping up the .NET Framework
25.1 Why PowerShell exists25.1.1 A crash course in .Net25.2 Exploring a class25.3 Making a wrapper25.4 A more practical example25.5 Your turn25.5.1 Start here25.5.2 Your task25.5.3 Our takeSummary
26 Storing data—not in Excel!
26.1 Introducing SQL Server!26.2 Setting up everything26.3 Using your database: Creating a table26.4 Saving data to SQL Server26.5 Querying data from SQL ServerSummary
27 Never the end
27.1 Welcome to toolmaking27.2 Taking your next step27.3 What’s in your future?Summary
index

Content preview from Learn PowerShell Scripting in a Month of Lunches, Second Edition

Part 1.

1.1 What is toolmaking?

1.2 Is this book for you?

1.3 What you need for this book

PowerShell version

Administrative privileges

Script editor

1.4 How to use this book

1.5 Expectations

1.6 How to ask for help

2 Setting up your scripting environment

2.1 The operating system

2.2 PowerShell

2.3 Administrative privileges and execution policy

2.4 Script editors

2.5 Our lab environment

2.6 Example code

2.7 Your turn

3 WWPD: What would PowerShell do?

3.1 One tool, one task

3.2 Naming your tools

3.3 Naming parameters

3.4 Producing output

3.5 Don’t assume ...

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Learn PowerShell Scripting in a Month of Lunches

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Learn PowerShell Scripting in a Month of Lunches, Second Edition

by Jeffery Hicks, Don Jones, James Petty

contents

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.