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Mastering Windows PowerShell Scripting (Second Edition)
Mastering Windows PowerShell Scripting (Second Edition)

Mastering Windows PowerShell Scripting (Second Edition): One-stop guide to automating administrative tasks , Second Edition

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Profile Icon Chris Dent Profile Icon Brenton J.W. Blawat
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Arrow left icon
Profile Icon Chris Dent Profile Icon Brenton J.W. Blawat
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$48.99
Full star icon Full star icon Full star icon Half star icon Empty star icon 3.3 (8 Ratings)
Paperback Oct 2017 440 pages 2nd Edition
eBook
$9.99 $39.99
Paperback
$48.99
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Mastering Windows PowerShell Scripting (Second Edition)

Working with PowerShell

A grasp of a few basics about PowerShell will go a long way. These basics will always be useful no matter how long you work with the language.

In this chapter, we will cover the following topics:

  • Getting help
  • Command naming
  • Command discovery
  • Parameters and parameter sets
  • Providers

Getting help

Gaining confidence using the built-in help system is an important part of working with PowerShell. In PowerShell, help is extensive; authors can easily write their own help content when working with scripts and script modules.

A number of commands are available to interact with the help system, as follows:

  • Get-Help
  • Save-Help
  • Update-Help

Before exploring these commands, the concept of updatable help should be discussed.

Updatable help

Updatable help was introduced with PowerShell 3. It gives authors the option to store the most recent versions of their help documentation outside of PowerShell on web servers.

Which modules support updatable help?
A list of modules that support updatable help may be viewed by running...

Command naming and discovery

Commands in PowerShell are formed around verb and noun pairs in the form verb-noun.

This feature is useful when finding commands; it allows you to make educated guesses such that there is little need to memorize long lists of commands.

Verbs

The list of verbs is maintained by Microsoft. This formal approach to naming commands greatly assists discovery.

Verbs are words such as Add, Get, Set, and New. In addition to these, we have ConvertFrom and ConvertTo.

The list of verbs is available within PowerShell, as follows:

Get-Verb 

Each verb has a group, such as data, life cycle, or security. Complementary actions such as encryption and decryption tend to use verbs in the same group; for example, the...

Parameters and parameter sets

As seen while looking at syntax in Get-Help, commands accept a mixture of parameters.

Parameters

When viewing help for a command, we can see many different approaches to different parameters.

Optional parameters

Optional parameters are surrounded by square brackets. This denotes an optional parameter that requires a value (when used):

SYNTAX
Get-Process [-ComputerName <String[]>] ...

In this case, if a value for a parameter is to be specified, the name of the parameter must also be specified, as shown in the following example:

Get...

Providers

Providers in PowerShell present access to data that is not normally easily accessible. There are providers for the filesystem, registry, certificate store, and so on. Each provider arranges data so that it resembles a filesystem.

A longer description of Providers may be seen by viewing the about file:

Get-Help about_Providers

The list of providers available in the current PowerShell session may be viewed by running Get-PSProvider, as shown in the following example:

PS> Get-PSProvider

Name Capabilities Drives
---- ------------ ------
Registry ShouldProcess, Transactions {HKLM, HKCU}
Alias ShouldProcess {Alias}
Environment ShouldProcess {Env}
FileSystem Filter, ShouldProcess, Credentials {C, D}
Function ShouldProcess ...

Summary

In this chapter, we explored the help system built into PowerShell. We took a brief look at syntax, examples, and parameters. We also looked at how help content may be moved between computers.

Command naming and discovery introduced how we might use the verb-noun pairing to discover commands that can be used. Aliases were introduced briefly.

Parameters and parameter sets were explored as well as different types of parameters.

Finally, we looked at providers and how they are used.

In Chapter 3, Modules and Snap-Ins, we will explore modules and snap-ins.

Left arrow icon Right arrow icon

Key benefits

  • Find quick solutions to automate your environment with ease
  • Work with large amounts of data effortlessly with PowerShell data types and secure them
  • Packed with real-world examples to automate and simplify the management of your Windows environment

Description

PowerShell scripts offer a handy way to automate various chores. Working with these scripts effectively can be a difficult task. This comprehensive guide starts from scratch and covers advanced-level topics to make you a PowerShell expert. The first module, PowerShell Fundamentals, begins with new features, installing PowerShell on Linux, working with parameters and objects, and also how you can work with .NET classes from within PowerShell. In the next module, you’ll see how to efficiently manage large amounts of data and interact with other services using PowerShell. You’ll be able to make the most of PowerShell’s powerful automation feature, where you will have different methods to parse and manipulate data, regular expressions, and WMI. After automation, you will enter the Extending PowerShell module, which covers topics such as asynchronous processing and, creating modules. The final step is to secure your PowerShell, so you will land in the last module, Securing and Debugging PowerShell, which covers PowerShell execution policies, error handling techniques, and testing. By the end of the book, you will be an expert in using the PowerShell language.

Who is this book for?

If you are a system administrator who wants to become an expert in controlling and automating your Windows environment, then this book is for you. It is also for those new to the PowerShell language.

What you will learn

  • Optimize code through the use of functions, switches, and looping structures
  • Install PowerShell on your Linux system
  • Utilize variables, hashes, and arrays to store data
  • Work with Objects and Operators to test and manipulate data
  • Parse and manipulate different data types
  • Write .NET classes with ease within the PowerShell
  • Create and implement regular expressions in PowerShell scripts
  • Deploy applications and code with PowerShell's Package management modules
  • Leverage session-based remote management
  • Manage files, folders, and registries through the use of PowerShell
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Publication date, Length, Edition, Language, ISBN-13
Publication date : Oct 27, 2017
Length: 440 pages
Edition : 2nd
Language : English
ISBN-13 : 9781787126305
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Microsoft
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Length: 440 pages
Edition : 2nd
Language : English
ISBN-13 : 9781787126305
Vendor :
Microsoft
Languages :
Tools :

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Table of Contents

17 Chapters
Introduction to PowerShell Chevron down icon Chevron up icon
Working with PowerShell Chevron down icon Chevron up icon
Modules and Snap-Ins Chevron down icon Chevron up icon
Working with Objects in PowerShell Chevron down icon Chevron up icon
Operators Chevron down icon Chevron up icon
Variables, Arrays, and Hashtables Chevron down icon Chevron up icon
Branching and Looping Chevron down icon Chevron up icon
Working with .NET Chevron down icon Chevron up icon
Data Parsing and Manipulation Chevron down icon Chevron up icon
Regular Expressions Chevron down icon Chevron up icon
Files, Folders, and the Registry Chevron down icon Chevron up icon
Windows Management Instrumentation Chevron down icon Chevron up icon
HTML, XML, and JSON Chevron down icon Chevron up icon
Working with REST and SOAP Chevron down icon Chevron up icon
Remoting and Remote Management Chevron down icon Chevron up icon
Testing Chevron down icon Chevron up icon
Error Handling Chevron down icon Chevron up icon

Customer reviews

Top Reviews
Rating distribution
Full star icon Full star icon Full star icon Half star icon Empty star icon 3.3
(8 Ratings)
5 star 25%
4 star 25%
3 star 12.5%
2 star 25%
1 star 12.5%
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Top Reviews

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nickp Mar 13, 2018
Full star icon Full star icon Full star icon Full star icon Full star icon 5
I really enjoyed this book. full disclosure: - i was given a copy by the publisher to review, but i would happily have paid for it. i am a Microsoft trainer, and deliver the Microsoft 10961 "Automating Administration with Windows Powershell" course three or four times a year; this book makes an excellent supplement to that course, especially now Microsoft only give students the electronic skillpipe version of the training material. The book not only covers but expands on all the course material, providing in-depth explanations, tips and tricks and pointing out some of the pitfalls. There are also a number of chapters on subjects that are not covered in the course that have become more important in the last few years, such as working with REST, HTML and JSON calls, and testing using Pester. Add in an excellent introductory chapter to working with .NET and all the powershell regex i ever want to see, and the book is a winner. i am recommending it to my colleagues and students.if there was one thing that could be improved upon, it would be the examples. i would like to see more 'real-world' examples, using things an admin might do, rather than some of the simple ones that are given to demonstrate the syntax.other than that, i loved it. i'll be forking out for a paper copy i can put next to my first edition "powershell scripting and toolmaking" book.
Amazon Verified review Amazon
Mr. Banner Dec 29, 2018
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Great for entry level powershell users
Amazon Verified review Amazon
Dung H Nguyen Apr 18, 2019
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
This is good book for advanced programmers. If anyone wants to explore more codes, he should read this books at least couple times.
Amazon Verified review Amazon
WorksGreatSoFar Jul 09, 2018
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
An excellent book to start with to understand and take your powershell scripting to the next level.
Amazon Verified review Amazon
michael May 25, 2018
Full star icon Full star icon Full star icon Empty star icon Empty star icon 3
Giving 3 stars because I don’t consider this a “mastering” book. It’s more of a reference guide/learn it fast guide. I’ve read multiple books, and this book is lacking detail and content.
Amazon Verified review Amazon
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