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Getting Started with Powershell

You're reading from   Getting Started with Powershell Learn the fundamentals of PowerShell to build reusable scripts and functions to automate administrative tasks with Windows

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Product type Paperback
Published in Aug 2015
Publisher Packt
ISBN-13 9781783558506
Length 180 pages
Edition 1st Edition
Languages
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Toc

Table of Contents (14) Chapters Close

Preface 1. First Steps FREE CHAPTER 2. Building Blocks 3. Objects and PowerShell 4. Life on the Assembly Line 5. Formatting Output 6. Scripts 7. Functions 8. Modules 9. File I/O 10. WMI and CIM 11. Web Server Administration A. Next Steps
Index

CDXML modules

One of the drawbacks of using the WMI or CIM cmdlets is that you don't get to use parameters that are specific to the properties of the WMI class you are dealing with. For instance, when we looked at the Win32_LogicalDisk instances, it would have been really nice to have parameters such as DriveType or Name to easily filter the output without having to use a WQL filter statement. In PowerShell 3.0, the concept of a CDXML module was introduced. CDXML modules allow you to create an XML description of the cmdlets and the associated parameters dealing with a WMI class, and the PowerShell engine creates the cmdlets for you when you import the module.

The CDXML modules have two main advantages, as follows:

  • The module is XML, so no coding is necessary.
  • End users get to use parameters that are specific to the type of object rather than a generic –Filter parameter

In PowerShell 4.0, the majority of modules on a server will be CDXML modules, because they are easy to write.

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