Windows PowerShell Cookbook by Holmes, Lee -- Read -- Imperial Library of Trantor

Index

Windows PowerShell Cookbook A Note Regarding Supplemental Files Foreword Preface

Who This Book Is For How This Book Is Organized

Part I Part II Part III Part IV Part V

What You Need to Use This Book Conventions Used in This Book Code Examples

Obtaining Code Examples Using Code Examples

Safari® Books Online How to Contact Us Acknowledgments

I. Tour

A Guided Tour of Windows PowerShell

Introduction An Interactive Shell Structured Commands (Cmdlets) Deep Integration of Objects Administrators as First-Class Users Composable Commands Techniques to Protect You from Yourself Common Discovery Commands Ubiquitous Scripting Ad Hoc Development Bridging Technologies Namespace Navigation Through Providers Much, Much More

II. Fundamentals

1. The Windows PowerShell Interactive Shell

Introduction Run Programs, Scripts, and Existing Tools

Problem Solution Discussion

Specifying the command name Specifying command arguments

See Also

Run a PowerShell Command

Problem Solution Discussion See Also

Resolve Errors Calling Native Executables

Problem Solution Discussion See Also

Supply Default Values for Parameters

Problem Solution Discussion See Also

Invoke a Long-Running or Background Command

Problem Solution Discussion See Also

Program: Monitor a Command for Changes

See Also

Notify Yourself of Job Completion

Problem Solution Discussion See Also

Customize Your Shell, Profile, and Prompt

Problem Solution Discussion See Also

Customize PowerShell’s User Input Behavior

Problem Solution Discussion See Also

Customize PowerShell’s Command Resolution Behavior

Problem Solution Discussion

Find a Command to Accomplish a Task

Problem Solution Discussion See Also

Get Help on a Command

Problem Solution Discussion See Also

Update System Help Content

Problem Solution Discussion See Also

Program: Search Help for Text

See Also

Launch PowerShell at a Specific Location

Problem Solution Discussion

Invoke a PowerShell Command or Script from Outside PowerShell

Problem Solution Discussion See Also

Understand and Customize PowerShell’s Tab Completion

Problem Solution Discussion See Also

Program: Learn Aliases for Common Commands

See Also

Program: Learn Aliases for Common Parameters

Problem Solution Discussion See Also

Access and Manage Your Console History

Problem Solution Discussion See Also

Program: Create Scripts from Your Session History

See Also

Invoke a Command from Your Session History

Problem Solution Discussion See Also

Program: Search Formatted Output for a Pattern

See Also

Interactively View and Process Command Output

Problem Solution Discussion

Processing output

See Also

Program: Interactively View and Explore Objects

See Also

Store the Output of a Command into a File

Problem Solution Discussion See Also

Add Information to the End of a File

Problem Solution Discussion See Also

Record a Transcript of Your Shell Session

Problem Solution Discussion

Extend Your Shell with Additional Commands

Problem Solution Discussion See Also

Use Commands from Customized Shells

Problem Solution Discussion

Detecting loaded snapins Detecting loaded modules

See Also

Save State Between Sessions

Problem Solution Discussion See Also

2. Pipelines

Introduction Filter Items in a List or Command Output

Problem Solution Discussion See Also

Group and Pivot Data by Name

Problem Solution Discussion See Also

Program: Simplify Most Where-Object Filters

See Also

Program: Interactively Filter Lists of Objects

See Also

Work with Each Item in a List or Command Output

Problem Solution Discussion See Also

Automate Data-Intensive Tasks

Problem Solution Discussion See Also

Program: Simplify Most Foreach-Object Pipelines

See Also

Intercept Stages of the Pipeline

Problem Solution Discussion See Also

Automatically Capture Pipeline Output

Problem Solution Discussion See Also

Capture and Redirect Binary Process Output

Problem Solution Discussion See Also

3. Variables and Objects

Introduction Display the Properties of an Item as a List

Problem Solution Discussion

Display the Properties of an Item as a Table

Problem Solution Discussion See Also

Store Information in Variables

Problem Solution Discussion See Also

Access Environment Variables

Problem Solution Discussion See Also

Program: Retain Changes to Environment Variables Set by a Batch File

See Also

Control Access and Scope of Variables and Other Items

Problem Solution Discussion

Variables Functions Aliases and drives

See Also

Program: Create a Dynamic Variable Work with .NET Objects

Problem Solution Discussion

Static methods Instance methods Static properties Instance properties

See Also

Create an Instance of a .NET Object

Problem Solution Discussion

Load types from another assembly

See Also

Create Instances of Generic Objects Reduce Typing for Long Class Names

Problem Solution Discussion See Also

Use a COM Object

Problem Solution Discussion See Also

Learn About Types and Objects

Problem Solution Discussion See Also

Get Detailed Documentation About Types and Objects

Problem Solution Discussion

Public constructors Public fields/public properties Public methods

See Also

Add Custom Methods and Properties to Objects

Problem Solution Discussion

Calculated properties

See Also

Create and Initialize Custom Objects

Problem Solution Discussion See Also

Add Custom Methods and Properties to Types

Problem Solution Discussion

Getting started Add a ScriptProperty Add an AliasProperty Add a ScriptMethod Add other extension points

Define Custom Formatting for a Type

Problem Solution Discussion

4. Looping and Flow Control

Introduction Make Decisions with Comparison and Logical Operators

Problem Solution Discussion See Also

Adjust Script Flow Using Conditional Statements

Problem Solution Discussion

Manage Large Conditional Statements with Switches

Problem Solution Discussion See Also

Repeat Operations with Loops

Problem Solution Discussion See Also

Add a Pause or Delay

Problem Solution Discussion See Also

5. Strings and Unstructured Text

Introduction Create a String

Problem Solution Discussion See Also

Create a Multiline or Formatted String

Problem Solution Discussion

Place Special Characters in a String

Problem Solution Discussion See Also

Insert Dynamic Information in a String

Problem Solution Discussion See Also

Prevent a String from Including Dynamic Information

Problem Solution Discussion See Also

Place Formatted Information in a String

Problem Solution Discussion See Also

Search a String for Text or a Pattern

Problem Solution Discussion See Also

Replace Text in a String

Problem Solution Discussion See Also

Split a String on Text or a Pattern

Problem Solution Discussion See Also

Combine Strings into a Larger String

Problem Solution Discussion See Also

Convert a String to Uppercase or Lowercase

Problem Solution Discussion See Also

Trim a String

Problem Solution Discussion See Also

Format a Date for Output

Problem Solution Discussion See Also

Program: Convert Text Streams to Objects

See Also

Generate Large Reports and Text Streams

Problem Solution Discussion

Creating large text reports

Generate Source Code and Other Repetitive Text

Problem Solution Discussion

6. Calculations and Math

Introduction Perform Simple Arithmetic

Problem Solution Discussion See Also

Perform Complex Arithmetic

Problem Solution Discussion

Working with any root Working with degrees instead of radians Working with large numbers Working with imaginary and complex numbers

See Also

Measure Statistical Properties of a List

Problem Solution Discussion

Work with Numbers as Binary

Problem Solution Discussion See Also

Simplify Math with Administrative Constants

Problem Solution Discussion See Also

Convert Numbers Between Bases

Problem Solution Discussion See Also

7. Lists, Arrays, and Hashtables

Introduction Create an Array or List of Items

Problem Solution Discussion See Also

Create a Jagged or Multidimensional Array

Problem Solution Discussion See Also

Access Elements of an Array

Problem Solution Discussion See Also

Visit Each Element of an Array

Problem Solution Discussion See Also

Sort an Array or List of Items

Problem Solution Discussion

Determine Whether an Array Contains an Item

Problem Solution Discussion See Also

Combine Two Arrays

Problem Solution Discussion See Also

Find Items in an Array That Match a Value

Problem Solution Discussion See Also

Compare Two Lists

Problem Solution Discussion See Also

Remove Elements from an Array

Problem Solution Discussion See Also

Find Items in an Array Greater or Less Than a Value

Problem Solution Discussion See Also

Use the ArrayList Class for Advanced Array Tasks

Problem Solution Discussion See Also

Create a Hashtable or Associative Array

Problem Solution Discussion See Also

Sort a Hashtable by Key or Value

Problem Solution Discussion See Also

8. Utility Tasks

Introduction Get the System Date and Time

Problem Solution Discussion See Also

Measure the Duration of a Command

Problem Solution Discussion See Also

Read and Write from the Windows Clipboard

Problem Solution Discussion See Also

Generate a Random Number or Object

Problem Solution Discussion See Also

Program: Search the Windows Start Menu

See Also

Program: Show Colorized Script Content

Discussion See Also

III. Common Tasks

9. Simple Files

Introduction Get the Content of a File

Problem Solution Discussion See Also

Search a File for Text or a Pattern

Problem Solution Discussion See Also

Parse and Manage Text-Based Logfiles

Problem Solution Discussion See Also

Parse and Manage Binary Files

Problem Solution Discussion See Also

Create a Temporary File

Problem Solution Discussion See Also

Search and Replace Text in a File

Problem Solution Discussion

Work with files encoded in Unicode or another (OEM) code page Replace text using a pattern instead of plain text Replace text that spans multiple lines Replace text in large files

See Also

Program: Get the Encoding of a File

See Also

Program: View the Hexadecimal Representation of Content

See Also

10. Structured Files

Introduction Access Information in an XML File

Problem Solution Discussion See Also

Perform an XPath Query Against XML

Problem Solution Discussion See Also

Convert Objects to XML

Problem Solution Discussion See Also

Modify Data in an XML File

Problem Solution Discussion

Easily Import and Export Your Structured Data

Problem Solution Discussion

Store the Output of a Command in a CSV or Delimited File

Problem Solution Discussion See Also

Import CSV and Delimited Data from a File

Problem Solution Discussion See Also

Manage JSON Data Streams

Problem Solution Discussion See Also

Use Excel to Manage Command Output

Problem Solution Discussion See Also

Parse and Interpret PowerShell Scripts

Problem Solution Discussion

Tokenization AST generation

See Also

11. Code Reuse

Introduction Write a Script

Problem Solution Discussion See Also

Write a Function

Problem Solution Discussion See Also

Find a Verb Appropriate for a Command Name

Problem Solution Discussion See Also

Write a Script Block

Problem Solution Discussion See Also

Return Data from a Script, Function, or Script Block

Problem Solution Discussion See Also

Package Common Commands in a Module

Problem Solution Discussion See Also

Write Commands That Maintain State

Problem Solution Discussion See Also

Selectively Export Commands from a Module

Problem Solution Discussion See Also

Diagnose and Interact with Internal Module State

Problem Solution Discussion See Also

Handle Cleanup Tasks When a Module Is Removed

Problem Solution Discussion See Also

Access Arguments of a Script, Function, or Script Block

Problem Solution Discussion

Supporting PowerShell’s common parameters Using the $args array

See Also

Add Validation to Parameters

Problem Solution Discussion

Defining parameter behavior Defining parameter validation

See Also

Accept Script Block Parameters with Local Variables

Problem Solution Discussion See Also

Dynamically Compose Command Parameters

Problem Solution Discussion See Also

Provide -WhatIf, -Confirm, and Other Cmdlet Features

Problem Solution Discussion See Also

Add Help to Scripts or Functions

Problem Solution Discussion See Also

Add Custom Tags to a Function or Script Block

Problem Solution Discussion See Also

Access Pipeline Input

Problem Solution Discussion See Also

Write Pipeline-Oriented Scripts with Cmdlet Keywords

Problem Solution Discussion See Also

Write a Pipeline-Oriented Function

Problem Solution Discussion See Also

Organize Scripts for Improved Readability

Problem Solution Discussion See Also

Invoke Dynamically Named Commands

Problem Solution Discussion See Also

Program: Enhance or Extend an Existing Cmdlet

See Also

12. Internet-Enabled Scripts

Introduction Download a File from an FTP or Internet Site

Problem Solution Discussion See Also

Upload a File to an FTP Site

Problem Solution Discussion See Also

Download a Web Page from the Internet

Problem Solution Discussion See Also

Parse and Analyze a Web Page from the Internet

Problem Solution Discussion See Also

Script a Web Application Session

Problem Solution Discussion See Also

Program: Get-PageUrls

See Also

Interact with REST-Based Web APIs

Problem Solution Discussion See Also

Connect to a Web Service

Problem Solution Discussion See Also

Export Command Output as a Web Page

Problem Solution Discussion

Send an Email

Problem Solution Discussion

Program: Monitor Website Uptimes

See Also

Program: Interact with Internet Protocols

See Also

13. User Interaction

Introduction Read a Line of User Input

Problem Solution Discussion See Also

Read a Key of User Input

Problem Solution Discussion

Program: Display a Menu to the User

See Also

Display Messages and Output to the User

Problem Solution Discussion See Also

Provide Progress Updates on Long-Running Tasks

Problem Solution Discussion

Write Culture-Aware Scripts

Problem Solution Discussion

Date, time, and number formats Complexity of user input and file content Capitalization rules Sorting rules Other guidelines

See Also

Support Other Languages in Script Output

Problem Solution Discussion See Also

Program: Invoke a Script Block with Alternate Culture Settings

See Also

Access Features of the Host’s User Interface

Problem Solution Discussion

Program: Add a Graphical User Interface to Your Script

See Also

Interact with MTA Objects

Problem Solution Discussion See Also

14. Debugging

Introduction Prevent Common Scripting Errors

Problem Solution Discussion See Also

Trace Script Execution

Problem Solution Discussion See Also

Set a Script Breakpoint

Problem Solution Discussion See Also

Debug a Script When It Encounters an Error

Problem Solution Discussion See Also

Create a Conditional Breakpoint

Problem Solution Discussion See Also

Investigate System State While Debugging

Problem Solution Discussion See Also

Program: Watch an Expression for Changes

See Also

Program: Get Script Code Coverage

See Also

15. Tracing and Error Management

Introduction Determine the Status of the Last Command

Problem Solution Discussion

View the Errors Generated by a Command

Problem Solution Discussion See Also

Manage the Error Output of Commands

Problem Solution Discussion See Also

Program: Resolve an Error

See Also

Configure Debug, Verbose, and Progress Output

Problem Solution Discussion See Also

Handle Warnings, Errors, and Terminating Errors

Problem Solution Discussion See Also

Output Warnings, Errors, and Terminating Errors

Problem Solution Discussion See Also

Program: Analyze a Script’s Performance Profile

See Also

16. Environmental Awareness

Introduction View and Modify Environment Variables

Problem Solution Discussion See Also

Modify the User or System Path

Problem Solution Discussion See Also

Access Information About Your Command’s Invocation

Problem Solution Discussion

Scripts Functions Script blocks

Program: Investigate the InvocationInfo Variable

See Also

Find Your Script’s Name

Problem Solution Discussion See Also

Find Your Script’s Location

Problem Solution Discussion See Also

Find the Location of Common System Paths

Problem Solution Discussion See Also

Get the Current Location

Problem Solution Discussion See Also

Safely Build File Paths Out of Their Components

Problem Solution Discussion

Interact with PowerShell’s Global Environment

Problem Solution Discussion See Also

Determine PowerShell Version Information

Problem Solution Discussion

Test for Administrative Privileges

Problem Solution Discussion See Also

17. Extend the Reach of Windows PowerShell

Introduction Automate Programs Using COM Scripting Interfaces

Problem Solution Discussion See Also

Program: Query a SQL Data Source

See Also

Access Windows Performance Counters

Problem Solution Discussion

Access Windows API Functions

Problem Solution Discussion See Also

Program: Invoke Simple Windows API Calls

See Also

Define or Extend a .NET Class

Problem Solution Discussion See Also

Add Inline C# to Your PowerShell Script

Problem Solution Discussion See Also

Access a .NET SDK Library

Problem Solution Discussion See Also

Create Your Own PowerShell Cmdlet

Problem Solution Discussion

Step 1: Download the PowerShell SDK Step 2: Create a file to hold the cmdlet source code Step 3: Compile the DLL Step 4: Load the module Step 5: Use the module

See Also

Add PowerShell Scripting to Your Own Program

Problem Solution Discussion

Step 1: Download the PowerShell SDK Step 2: Create a file to hold the hosting source code Step 3: Compile and run the example

See Also

18. Security and Script Signing

Introduction Enable Scripting Through an Execution Policy

Problem Solution Discussion

Execution policies are not user restrictions

See Also

Disable Warnings for UNC Paths

Problem Solution Discussion See Also

Sign a PowerShell Script, Module, or Formatting File

Problem Solution Discussion See Also

Program: Create a Self-Signed Certificate

Discussion See Also

Manage PowerShell Security in an Enterprise

Problem Solution Discussion

Apply PowerShell’s Group Policy templates Deploy Microsoft Certificate Services

See Also

Block Scripts by Publisher, Path, or Hash

Problem Solution Discussion See Also

Verify the Digital Signature of a PowerShell Script

Problem Solution Discussion

Securely Handle Sensitive Information

Problem Solution Discussion See Also

Securely Request Usernames and Passwords

Problem Solution Discussion See Also

Program: Start a Process as Another User

See Also

Program: Run a Temporarily Elevated Command

See Also

Securely Store Credentials on Disk

Problem Solution

Save the credential’s password to disk Recreate the credential from the password stored on disk

Discussion See Also

Access User and Machine Certificates

Problem Solution Discussion See Also

Program: Search the Certificate Store

See Also

Add and Remove Certificates

Problem Solution Discussion See Also

Manage Security Descriptors in SDDL Form

Problem Solution Discussion See Also

19. Integrated Scripting Environment

Introduction Debug a Script

Problem Solution Discussion See Also

Customize Text and User Interface Colors

Problem Solution Discussion See Also

Connect to a Remote Computer

Problem Solution Discussion See Also

Extend ISE Functionality Through Its Object Model

Problem Solution Discussion See Also

Quickly Insert Script Snippets

Problem Solution Discussion See Also

Add an Item to the Tools Menu

Problem Solution Discussion See Also

IV. Administrator Tasks

20. Files and Directories

Introduction Determine the Current Location

Problem Solution Discussion

Get the Files in a Directory

Problem Solution Discussion See Also

Find All Files Modified Before a Certain Date

Problem Solution Discussion See Also

Clear the Content of a File

Problem Solution Discussion See Also

Manage and Change the Attributes of a File

Problem Solution Discussion See Also

Find Files That Match a Pattern

Problem Solution Discussion See Also

Manage Files That Include Special Characters

Problem Solution Discussion

Program: Get Disk Usage Information

See Also

Monitor a File for Changes

Problem Solution Discussion

Get the Version of a DLL or Executable

Problem Solution Discussion See Also

Program: Get the MD5 or SHA1 Hash of a File

See Also

Create a Directory

Problem Solution Discussion

Remove a File or Directory

Problem Solution Discussion See Also

Rename a File or Directory

Problem Solution Discussion See Also

Move a File or Directory

Problem Solution Discussion See Also

Create and Map PowerShell Drives

Problem Solution Discussion

Access Long File and Directory Names

Problem Solution Discussion See Also

Unblock a File

Problem Solution Discussion See Also

Interact with Alternate Data Streams

Problem Solution Discussion See Also

Program: Move or Remove a Locked File

See Also

Get the ACL of a File or Directory

Problem Solution Discussion See Also

Set the ACL of a File or Directory

Problem Solution Discussion See Also

Program: Add Extended File Properties to Files

See Also

Program: Create a Filesystem Hard Link

See Also

Program: Create a ZIP Archive

See Also

21. The Windows Registry

Introduction Navigate the Registry

Problem Solution Discussion See Also

View a Registry Key

Problem Solution Discussion

Modify or Remove a Registry Key Value

Problem Solution Discussion

Create a Registry Key Value

Problem Solution Discussion

Remove a Registry Key

Problem Solution Discussion See Also

Safely Combine Related Registry Modifications

Problem Solution Discussion See Also

Add a Site to an Internet Explorer Security Zone

Problem Solution Discussion See Also

Modify Internet Explorer Settings

Problem Solution Discussion See Also

Program: Search the Windows Registry

See Also

Get the ACL of a Registry Key

Problem Solution Discussion See Also

Set the ACL of a Registry Key

Problem Solution Discussion See Also

Work with the Registry of a Remote Computer

Problem Solution Discussion See Also

Program: Get Registry Items from Remote Machines

See Also

Program: Get Properties of Remote Registry Keys

See Also

Program: Set Properties of Remote Registry Keys

See Also

Discover Registry Settings for Programs

Problem Solution Discussion

Launch and configure Process Monitor Prepare to manually set the configuration option Tell Process Monitor to begin capturing information Manually set the configuration option Tell Process Monitor to stop capturing information Review the capture logs for registry modification Automate these registry writes

See Also

22. Comparing Data

Introduction Compare the Output of Two Commands

Problem Solution Discussion

Determine the Differences Between Two Files

Problem Solution Discussion

Verify Integrity of File Sets

Problem Solution Discussion See Also

23. Event Logs

Introduction List All Event Logs

Problem Solution Discussion See Also

Get the Newest Entries from an Event Log

Problem Solution Discussion See Also

Find Event Log Entries with Specific Text

Problem Solution Discussion See Also

Retrieve and Filter Event Log Entries

Problem Solution Discussion

Efficiently processing simple queries Automating GUI-generated searches Performing complex event analysis and correlation

See Also

Find Event Log Entries by Their Frequency

Problem Solution Discussion See Also

Back Up an Event Log

Problem Solution Discussion

Create or Remove an Event Log

Problem Solution Discussion See Also

Write to an Event Log

Problem Solution Discussion See Also

Run a PowerShell Script for Windows Event Log Entries

Problem Solution Discussion See Also

Clear or Maintain an Event Log

Problem Solution Discussion See Also

Access Event Logs of a Remote Machine

Problem Solution Discussion See Also

24. Processes

Introduction List Currently Running Processes

Problem Solution Discussion See Also

Launch the Application Associated with a Document

Problem Solution Discussion See Also

Launch a Process

Problem Solution Discussion See Also

Stop a Process

Problem Solution Discussion

Get the Owner of a Process

Problem Solution Discussion See Also

Get the Parent Process of a Process

Problem Solution Discussion See Also

Debug a Process

Problem Solution Discussion See Also

25. System Services

Introduction List All Running Services

Problem Solution Discussion See Also

Manage a Running Service

Problem Solution Discussion See Also

Configure a Service

Problem Solution Discussion See Also

26. Active Directory

Introduction Test Active Directory Scripts on a Local Installation

Problem Solution Discussion

Verify prerequisites Install ADAM Create a test instance

See Also

Create an Organizational Unit

Problem Solution Discussion See Also

Get the Properties of an Organizational Unit

Problem Solution Discussion

Modify Properties of an Organizational Unit

Problem Solution Discussion

Delete an Organizational Unit

Problem Solution Discussion

Get the Children of an Active Directory Container

Problem Solution Discussion See Also

Create a User Account

Problem Solution Discussion See Also

Program: Import Users in Bulk to Active Directory

See Also

Search for a User Account

Problem Solution Discussion

Get and List the Properties of a User Account

Problem Solution Discussion

Modify Properties of a User Account

Problem Solution Discussion

Change a User Password

Problem Solution Discussion See Also

Create a Security or Distribution Group

Problem Solution Discussion See Also

Search for a Security or Distribution Group

Problem Solution Discussion

Get the Properties of a Group

Problem Solution Discussion

Find the Owner of a Group

Problem Solution Discussion

Modify Properties of a Security or Distribution Group

Problem Solution Discussion

Add a User to a Security or Distribution Group

Problem Solution Discussion See Also

Remove a User from a Security or Distribution Group

Problem Solution Discussion See Also

List a User’s Group Membership

Problem Solution Discussion See Also

List the Members of a Group

Problem Solution Discussion See Also

List the Users in an Organizational Unit

Problem Solution Discussion See Also

Search for a Computer Account

Problem Solution Discussion

Get and List the Properties of a Computer Account

Problem Solution Discussion

27. Enterprise Computer Management

Introduction Join a Computer to a Domain or Workgroup

Problem Solution Discussion See Also

Remove a Computer from a Domain

Problem Solution Discussion See Also

Rename a Computer

Problem Solution Discussion

Program: List Logon or Logoff Scripts for a User

See Also

Program: List Startup or Shutdown Scripts for a Machine

See Also

Deploy PowerShell-Based Logon Scripts

Problem Solution Discussion See Also

Enable or Disable the Windows Firewall

Problem Solution Discussion See Also

Open or Close Ports in the Windows Firewall

Problem Solution Discussion See Also

Program: List All Installed Software

See Also

Uninstall an Application

Problem Solution Discussion See Also

Manage Computer Restore Points

Problem Solution Discussion

Reboot or Shut Down a Computer

Problem Solution Discussion See Also

Determine Whether a Hotfix Is Installed

Problem Solution Discussion

Manage Scheduled Tasks on a Computer

Problem Solution Discussion See Also

Retrieve Printer Information

Problem Solution Discussion See Also

Retrieve Printer Queue Statistics

Problem Solution Discussion See Also

Manage Printers and Print Queues

Problem Solution Discussion See Also

Program: Summarize System Information

See Also

Renew a DHCP Lease

Problem Solution Discussion

Use the Win32_NetworkAdapterConfiguration WMI class Run ipconfig on the remote computer

See Also

Assign a Static IP Address

Problem Solution Discussion See Also

List All IP Addresses for a Computer

Problem Solution Discussion

Use the Win32_NetworkAdapterConfiguration WMI class Run ipconfig on the remote computer

See Also

List Network Adapter Properties

Problem Solution Discussion See Also

28. Windows Management Instrumentation

Introduction

The Shift to CIM

Access Windows Management Instrumentation and CIM Data

Problem Solution Discussion See Also

Modify the Properties of a WMI or CIM Instance

Problem Solution Discussion See Also

Invoke a Method on a WMI Instance or Class

Problem Solution Discussion See Also

Program: Determine Properties Available to WMI and CIM Filters

See Also

Program: Search for WMI Classes

See Also

Use .NET to Perform Advanced WMI Tasks

Problem Solution

Advanced instance features Advanced class features Advanced query feature

Discussion See Also

Improve the Performance of Large-Scale WMI Operations

Problem Solution Discussion See Also

Convert a VBScript WMI Script to PowerShell

Problem Solution Discussion

Retrieving data Calling methods on an instance Calling methods on a class

See Also

29. Remoting

Introduction Find Commands That Support Their Own Remoting

Problem Solution Discussion See Also

Enable PowerShell Remoting on a Computer

Problem Solution Discussion

Enable remoting on a single local machine Enable remoting on a remote machine Enable remoting in an enterprise

See Also

Interactively Manage a Remote Computer

Problem Solution Discussion See Also

Invoke a Command on a Remote Computer

Problem Solution Discussion See Also

Disconnect and Reconnect PowerShell Sessions

Problem Solution Discussion See Also

Program: Remotely Enable PowerShell Remoting

See Also

Program: Invoke a PowerShell Expression on a Remote Machine

See Also

Test Connectivity Between Two Computers

Problem Solution Discussion See Also

Limit Networking Scripts to Hosts That Respond

Problem Solution Discussion See Also

Enable Remote Desktop on a Computer

Problem Solution Discussion See Also

Configure User Permissions for Remoting

Problem Solution Discussion See Also

Enable Remoting to Workgroup Computers

Problem Solution Discussion

Implicitly Invoke Commands from a Remote Computer

Problem Solution Discussion See Also

Create Sessions with Full Network Access

Problem Solution Discussion See Also

Pass Variables to Remote Sessions

Problem Solution Discussion See Also

Configure Advanced Remoting Quotas and Options

Problem Solution Discussion See Also

Invoke a Command on Many Computers

Problem Solution Discussion See Also

Run a Local Script on a Remote Computer

Problem Solution Discussion See Also

Program: Transfer a File to a Remote Computer

See Also

Determine Whether a Script Is Running on a Remote Computer

Problem Solution Discussion See Also

Create a Task-Specific Remoting Endpoint

Problem Solution Discussion See Also

30. Workflows

Introduction Write a Workflow

Problem Solution Discussion

Writing a basic workflow Major conceptual differences between scripts and workflows Major syntactic differences between scripts and workflows

See Also

Run a Workflow

Problem Solution Discussion See Also

Suspend and Resume a Workflow

Problem Solution Discussion See Also

Invoke Islands of Traditional PowerShell Script

Problem Solution Discussion See Also

Invoke Workflow Actions in Parallel

Problem Solution Discussion See Also

Customize an Activity’s Connection Parameters

Problem Solution Discussion See Also

Write a Workflow That Requires Human Intervention

Problem Solution Discussion See Also

Add Raw XAML to a Workflow

Problem Solution Discussion See Also

Reference Custom Activities in a Workflow

Problem Solution Discussion See Also

Debug or Troubleshoot a Workflow

Problem Solution Discussion

Authoring-time debugging Runtime debugging

See Also

Use PowerShell Activities from a Traditional Windows Workflow Application

Problem Solution Discussion See Also

31. Transactions

Introduction Safely Experiment with Transactions

Problem Solution Discussion See Also

Change Error Recovery Behavior in Transactions

Problem Solution Discussion See Also

32. Event Handling

Introduction Respond to Automatically Generated Events

Problem Solution Discussion See Also

Create and Respond to Custom Events

Problem Solution Discussion See Also

Create a Temporary Event Subscription

Problem Solution Discussion See Also

Forward Events from a Remote Computer

Problem Solution Discussion See Also

Investigate Internal Event Action State

Problem Solution Discussion See Also

Use a Script Block as a .NET Delegate or Event Handler

Problem Solution Discussion See Also

V. References

A. PowerShell Language and Environment

Commands and Expressions Comments Help Comments Variables Booleans Strings

Literal and Expanding Strings Here Strings Escape Sequences

Numbers

Simple Assignment Administrative Numeric Constants Hexadecimal and Other Number Bases Large Numbers Imaginary and Complex Numbers

Arrays and Lists

Array Definitions Array Access Array Slicing

Hashtables (Associative Arrays)

Hashtable Definitions Hashtable Access

XML Simple Operators

Arithmetic Operators Logical Operators Binary Operators Other Operators

Comparison Operators Conditional Statements

if, elseif, and else Statements switch Statements

Looping Statements

for Statement foreach Statement while Statement do … while Statement/do … until Statement Flow Control Statements

break continue

Workflow-Specific Statements

InlineScript Parallel/Sequence Foreach -Parallel

Working with the .NET Framework

Static Methods Instance Methods Explicitly Implemented Interface Methods Static Properties Instance Properties Learning About Types

The Get-Member cmdlet .NET Framework documentation

Type Shortcuts Creating Instances of Types Interacting with COM Objects Extending Types

The Add-Member cmdlet Custom type extension files

Writing Scripts, Reusing Functionality

Writing Commands

Writing scripts Writing functions Writing script blocks

Running Commands

Invoking Dot-sourcing Parameters

Providing Input to Commands

Argument array Formal parameters Command behavior customizations Parameter attribute customizations Parameter validation attributes Pipeline input Cmdlet keywords in commands $MyInvocation automatic variable

Retrieving Output from Commands

Pipeline output Return statement Exit statement

Help Documentation

Managing Errors

Nonterminating Errors Terminating Errors

Formatting Output

Custom Formatting Files

Capturing Output Common Customization Points

Console Settings

Adjust your window size Make text selection easier Use hotkeys to operate the shell more efficiently

Profiles Prompts Tab Completion User Input Command Resolution

B. Regular Expression Reference C. XPath Quick Reference D. .NET String Formatting

String Formatting Syntax Standard Numeric Format Strings Custom Numeric Format Strings

E. .NET DateTime Formatting

Custom DateTime Format Strings

F. Selected .NET Classes and Their Uses G. WMI Reference H. Selected COM Objects and Their Uses I. Selected Events and Their Uses J. Standard PowerShell Verbs

Index About the Author Colophon Copyright

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