Book Image

Mastering Windows PowerShell Scripting (Second Edition) - Second Edition

By : Brenton J.W. Blawat
Book Image

Mastering Windows PowerShell Scripting (Second Edition) - Second Edition

By: Brenton J.W. Blawat

Overview of this book

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.
Table of Contents (24 chapters)
Title Page
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

PS sessions


PS sessions use Windows remoting to communicate between servers. PS sessions can be used for anything from remote command and script execution to providing a remote shell.

New-PSSession

Sessions are created using the New-PSSession command. In the following example, a session is created on a computer named PSTEST:

PS> New-PSSession -ComputerName PSTEST
Id Name ComputerName State ConfigurationName Availability
-- ---- ------------ ----- ----------------- ------------
1  Session1 PSTEST  Opened Microsoft.PowerShell Available

Get-PSSession

Sessions created using New-PSSession persist until the PS session is removed (by Remove-PSSession) or the PowerShell session ends. The following example returns sessions created in the current PowerShell session:

PS> Get-PSSession | Select-Object Id, ComputerName, State
Id ComputerName State
-- ------------ -----
 1 PSTEST       Opened

If the ComputerName parameter is supplied, Get-PSSession will show sessions created on that computer. For example...