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Mastering Windows PowerShell Scripting

By : Brenton J.W. Blawat
Book Image

Mastering Windows PowerShell Scripting

By: Brenton J.W. Blawat

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Mastering Windows PowerShell Scripting
Brenton J.W. Blawat
Apr, 2015 | 282 pages
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Table of Contents (22 chapters)
Mastering Windows PowerShell Scripting
Mastering Windows PowerShell Scripting
Credits
Credits
Foreword
Foreword
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Variables, Arrays, and Hashes
Variables, Arrays, and Hashes
Variables
Arrays
Hashes
Deciding the best container for your scripts
Summary
2
Data Parsing and Manipulation
Data Parsing and Manipulation
String manipulation
Number manipulation and parsing
Date and time manipulation
Forcing data types
Piping variables
Summary
3
Comparison Operators
Comparison Operators
Comparison operator basics
Equal and not equal comparison
Greater than and less than comparison
Contains, like, and match operators
And / OR comparison operators
Best practices for comparison operators
Summary
4
Functions, Switches, and Loops Structures
Functions, Switches, and Loops Structures
Functions
Looping structures
Switches
Combining the use of functions, switches, and loops
Best practices for functions, switches, and loops
Summary
5
Regular Expressions
Regular Expressions
Getting started with regular expressions
Regular expression grouping constructs and ranges
Regular expression quantifiers
Regular expression anchors
Regular expressions examples
Summary
6
Error and Exception Handling and Testing Code
Error and Exception Handling and Testing Code
Error and exception handling – parameters
Error and exception handling – Try/Catch
Error and exception handling – legacy exception handling
Methodologies for testing code
Summary
7
Session-based Remote Management
Session-based Remote Management
Utilizing CIM sessions
Summary
8
Managing Files, Folders, and Registry Items
Managing Files, Folders, and Registry Items
Registry provider
Creating files, folders, and registry items with PowerShell
Adding named values to registry keys
Verifying files, folders, and registry items
Copying and moving files and folders
Renaming files, folders, registry keys, and named values
Deleting files, folders, registry keys, and named values
Summary
9
File, Folder, and Registry Attributes, ACLs, and Properties
File, Folder, and Registry Attributes, ACLs, and Properties
Retrieving attributes and properties
Viewing file and folder extended attributes
Setting the mode and extended file and folder attributes
Managing file, folder, and registry permissions
Summary
10
Windows Management Instrumentation
Windows Management Instrumentation
WMI structure
Using WMI objects
Searching for WMI classes
Creating, modifying, and removing WMI property instances
Invoking WMI class methods
Summary
11
XML Manipulation
XML Manipulation
XML file structure
Summary
12
Managing Microsoft Systems with PowerShell
Managing Microsoft Systems with PowerShell
Managing local users and groups
Managing Windows services
Managing Windows processes
Installing Windows features and roles
Summary
13
Automation of the Environment
Automation of the Environment
Invoking programs for automation
Using desired state configuration
Detecting and restoring drifting configurations
Summary
14
Script Creation Best Practices and Conclusion
Script Creation Best Practices and Conclusion
Best practices for script management
# commenting headers
Best practices for script creation
Best practices for software automation
Summary
Index
Index

Chapter 3. Comparison Operators

PowerShell comparison operators are used to validate data present within your scripts. These operators enable you to compare data and execute code based on the data. This makes PowerShell an extremely effective tool to use for processing complicated data with the available comparison operators.

In this chapter, you will learn the following concepts:

  • Comparison operator basics

  • Equal and not equal comparison operators

  • Greater than and less than comparison operators

  • Contains, like, and match comparison operators

  • -AND / -OR comparison operators

  • Best practices for comparison operators

Previous Section
End of Section 1
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