Windows PowerShell 3.0 First Steps by Wilson, Ed -- Read -- Imperial Library of Trantor

Index

Windows PowerShell 3.0 First Steps Dedication Foreword Introduction

System Requirements

Hardware Requirements Software Requirements

Acknowledgments Support & Feedback

Errata We Want to Hear from You Stay in Touch

1. Overview of Windows PowerShell 3.0

Understanding Windows PowerShell Working with Windows PowerShell

Security issues with Windows PowerShell

Running as a non-elevated user Launching Windows PowerShell with administrator rights

Using Windows PowerShell cmdlets

The most common verb: Get

Finding process information Identifying installed Windows hotfixes Getting detailed service information Identifying installed network adapters Retrieving detected network connection profiles Getting the current culture settings Finding the current date and time Generating a random number

Supplying options for cmdlets

Using single parameters

Finding specific types of hotfixes Finding specific processes Generating random numbers in a range

Introduction to parameter sets

Generating a certain number of random numbers

Using command-line utilities

Working with Help options Summary

2. Using Windows PowerShell cmdlets

Understanding the basics of cmdlets

Common Windows PowerShell parameters

Using the Verbose parameter to provide additional information Using the ErrorAction parameter to hide errors

Starting the Windows PowerShell transcript Stopping and reviewing the Windows PowerShell transcript

Searching the Help topics

Using the Get-Help cmdlet

Paging the Help output Using the Get-Help cmdlet to search for Windows PowerShell cmdlets

Using the About conceptual Help topics

Using the Get-Command to find cmdlets Using the Get-Member cmdlet

Exploring property members

Using the Show-Command cmdlet Setting the Script Execution Policy Creating a basic Windows PowerShell profile

Determining if a Windows PowerShell profile exists Creating a new Windows PowerShell profile

Summary

3. Filtering, grouping, and sorting

Introduction to the pipeline Sorting output from a cmdlet Grouping output after sorting

Grouping information without element data

Filtering output from one cmdlet

Filtering by date Filtering to the left

Filtering output from one cmdlet before sorting Summary

4. Formatting output

Creating a table

Choosing specific properties in a specific order Controlling the way the table displays

Creating a list

Choosing properties by name Choosing properties by wildcard

Creating a wide display

Using the -AutoSize parameter to configure the output Customizing the Format-Wide output

Creating an output grid

Sorting output by using the column buttons Filtering output by using the filter box

Summary

5. Storing output

Storing data in text files

Redirect and append Redirect and overwrite Controlling the text file

Storing data in .csv files

No type information Using type information

Storing data in XML

The problem with complex objects Using XML to store complex objects

Summary

6. Leveraging Windows PowerShell providers

Understanding Windows PowerShell providers

Understanding the Alias provider Understanding the Certificate provider

Searching for specific certificates Finding expiring certificates

Understanding the Environment provider Understanding the File System provider Understanding the Function provider Understanding the Registry provider

The two registry drives Retrieving registry values Creating new registry keys The short way to create a new registry key Setting the default value for the key Using New-Item to create and assign a value Modifying the value of a registry property value Dealing with a missing registry property value

Understanding the Variable provider

Summary

7. Using Windows PowerShell remoting

Using Windows PowerShell remoting

Classic remoting

Configuring Windows PowerShell remoting

Running commands

Running a single Windows PowerShell command Running a single command against multiple computers

Creating a persisted connection

Troubleshooting Windows PowerShell remoting Summary

8. Using WMI

Understanding the WMI Model

Working with objects and namespaces Listing WMI providers Working with WMI classes

Querying WMI: The basics

Tell me everything about everything Tell me selected things about everything Tell me everything about some things Tell me selected things about some things

Summary

9. Using CIM

Using CIM cmdlets to explore WMI classes

Using the classname parameter Finding WMI class methods Filtering classes by qualifier

Retrieving WMI instances

Reducing returned properties and instances Cleaning up output from the command

Working with associations Summary

10. Using the Windows PowerShell ISE

Running the Windows PowerShell ISE

Navigating the Windows PowerShell ISE Working with the Script pane Tab expansion and Intellisense

Working with Windows PowerShell ISE snippets

Using Windows PowerShell ISE snippets to create code Creating new Windows PowerShell ISE snippets Removing user-defined Windows PowerShell ISE snippets

Summary

11. Using Windows PowerShell scripts

Why write Windows PowerShell scripts? Scripting fundamentals

Running Windows PowerShell scripts Enabling Windows PowerShell scripting support Transitioning from command line to script Running Windows PowerShell scripts Understanding variables and constants

Using variables

Using the While statement

Constructing the While statement

Understanding expanding strings Understanding literal strings

A practical example of using the While statement Using special features of Windows PowerShell

Using the Do…While statement

Using the range operator Operating over an array Casting to ASCII values

Using the Do…Until statement

Using the Windows PowerShell Do…Loop statement

The Do…While and Do…Until statements always run once The While statement is used to prevent unwanted execution

Using the For statement

Creating a For…Loop Using the ForEach statement

Using the ForEach statement from the Windows PowerShell console

Exiting the ForEach statement early

Using the Break statement Using the Exit statement

Using the If statement

Using assignment and comparison operators Evaluating multiple conditions

Using the Switch statement

Using the basic Switch statement

Defining the Default condition Understanding matching Evaluating an array

Controlling matching behavior

Summary

12. Working with functions

Understanding functions

Using a type constraint

Using multiple input parameters Using functions to encapsulate business logic Using functions to provide ease of modification Summary

13. Debugging scripts

Understanding debugging in Windows PowerShell Debugging the script

Setting breakpoints Setting a breakpoint on a line number Setting a breakpoint on a variable Setting a breakpoint on a command Responding to breakpoints Listing breakpoints Enabling and disabling breakpoints Deleting breakpoints

Summary

14. Handling errors

Handling missing parameters

Creating a default value for the parameter

Detecting the missing value and assigning it in the script Assigning the value in the Param statement

Making the parameter mandatory

Limiting choices

Using PromptForChoice to limit selections Using Test-Connection to identify accessible computers Using the contains operator to examine contents of an array

Handling missing rights

Attempting and failing Checking for rights and exiting gracefully

Using Try/Catch/Finally Summary

A. Windows PowerShell FAQ B. Windows PowerShell 3.0 coding conventions

General script construction

Include functions in the script that uses the functions Use full cmdlet names and full parameter names

Understanding the use of aliases If you must use an alias, use only canonical aliases in a script Always use the Description property when creating an alias

Use Get-Item to convert path strings to rich types

General script readability Formatting your code

Working with functions Creating template files Writing your own functions Variables, constants, and naming

Index About the Author Copyright

← Prev
Back
Next →

← Prev
Back
Next →