About topics

Describes how the continue statement immediately returns the program flow to the top of a program loop, a switch statement, or a trap statement.

about_Core_Commands

Lists the cmdlets that are designed for use with PowerShell providers.

about_Data_Files

PowerShell data files are used to store arbitrary data using PowerShell syntax.

about_Data_Sections

Explains Data sections, which isolate text strings and other read-only data from script logic.

about_Do

Runs a statement list one or more times, subject to a While or Until condition.

about_Enum

The enum statement is used to declare an enumeration. An enumeration is a distinct type that consists of a set of named labels called the enumerator list.

about_Environment_Provider

Provides access to the Windows environment variables.

about_Environment_Variables

Describes how to access and manage environment variables in PowerShell.

about_Execution_Policies

Describes the PowerShell execution policies and explains how to manage them.

Use the Experimental attribute to declare some code as experimental. Use the following syntax to declare the Experimental attribute providing the name of the experimental feature and the action to take if the experimental feature is enabled: csharp [Experimental(NameOfExperimentalFeature, ExperimentAction)] For modules, the NameOfExperimentalFeature must follow the form of <modulename>.<experimentname>. The ExperimentAction parameter must be specified and the only valid values are: - Show means to show this experimental feature if the feature is enabled - Hide means to hide this experimental feature if the feature is enabled

about_FileSystem_Provider

Provides access to files and directories.

about_For

Describes a language command you can use to run statements based on a conditional test.

about_Foreach

Describes a language command you can use to traverse all the items in a collection of items.

about_Format.ps1xml

The Format.ps1xml files in PowerShell define the default display of objects in the PowerShell console.

about_Function_Provider

Provides access to the functions defined in PowerShell.

about_Functions_Advanced_Methods

Describes how functions that specify the CmdletBinding attribute can use the methods and properties that are available to compiled cmdlets.

about_Functions_Advanced_Parameters

Explains how to add parameters to advanced functions.

about_Functions_Advanced

Introduces advanced functions that are a way to create cmdlets using scripts.

about_Functions_Argument_Completion

Argument completion is a feature of PowerShell that provide hints, enables discovery, and speeds up input entry of argument values.

about_Functions_CmdletBindingAttribute

Describes the attribute that makes a function work like a compiled cmdlet.

about_Functions_OutputTypeAttribute

Describes an attribute that reports the type of object that the function returns.

about_Functions

Describes how to create and use functions in PowerShell.

about_Group_Policy_Settings

Describes the Group Policy settings for PowerShell

about_Hash_Tables

Describes how to create, use, and sort hashtables in PowerShell.

about_Hidden

Describes the hidden keyword, which hides class members from default Get-Member results.

about_History

Describes how to get and run commands in the command history.

about_If

Describes a language command you can use to run statement lists based on the results of one or more conditional tests.

about_Intrinsic_Members

Provides information about PowerShell's intrinsic members that are available to all PowerShell objects.

about_Job_Details

Provides details about background jobs on local and remote computers.

about_Jobs

Provides information about how PowerShell background jobs run a command or expression in the background without interacting with the current session.

about_Join

Describes how the join operator (-join) combines multiple strings into a single string.

about_Language_Keywords

Describes the keywords in the PowerShell scripting language.

about_Language_Modes

Explains language modes and their effect on PowerShell sessions.

about_Line_Editing

Describes how to edit commands at the PowerShell command prompt.

about_Locations

Describes how to access items from the working location in PowerShell.

about_Logging_Non-Windows

PowerShell logs internal operations from the engine, providers, and cmdlets.

about_Logging_Windows

PowerShell logs internal operations from the engine, providers, and cmdlets to the Windows event log.

about_Logical_Operators

Describes the operators that connect statements in PowerShell.

about_Member-Access_Enumeration

Describes the automatic enumeration of list collection items when using the member-access operator.

about_Methods

Describes how to use methods to perform actions on objects in PowerShell.

about_Module_Manifests

Describes the settings and practices for writing module manifest files.

about_Modules

Explains how to install, import, and use PowerShell modules.

about_Numeric_Literals

This article describes the syntax and usage of numeric values in PowerShell.

about_Object_Creation

Explains how to create objects in PowerShell.

about_Objects

Provides essential information about objects in PowerShell.

about_Operator_Precedence

Lists the PowerShell operators in precedence order.

about_Operators

Describes the operators that are supported by PowerShell.

about_Output_Streams

Explains the availability and purpose of output streams in PowerShell.

about_PackageManagement

PackageManagement is an aggregator for software package managers.

about_Parameter_Sets

Describes how to define and use parameter sets in advanced functions.

about_Parameters_Default_Values

Describes how to set custom default values for cmdlet parameters and advanced functions.

about_Parameters

Describes how to work with command parameters in PowerShell.

about_Parsing

Describes how PowerShell parses commands.

about_Path_Syntax

Describes the full and relative path formats in PowerShell.

about_Pipeline_Chain_Operators

Describes chaining pipelines with the && and || operators in PowerShell.

about_Pipelines

Combining commands into pipelines in the PowerShell

about_PowerShell_Config

Configuration files for PowerShell, replacing Registry configuration.

about_PowerShell_Editions

Different editions of PowerShell run on different underlying runtimes.

about_Preference_Variables

Variables that customize the behavior of PowerShell.

about_Profiles

Describes how to create and use a PowerShell profile.

about_Prompts

Describes the Prompt function and demonstrates how to create a custom Prompt function.

about_Properties

Describes how to use object properties in PowerShell.

about_Providers

Describes how PowerShell providers provide access to data and components that wouldn't otherwise be easily accessible at the command line. The data is presented in a consistent format that resembles a file system drive.

about_PSConsoleHostReadLine

Explains how to create a customize how PowerShell reads input at the console prompt.

about_PSCustomObject

Explains the differences between the [psobject] and [pscustomobject] type accelerators.

about_PSItem

The automatic variable that contains the current object in the pipeline object.

about_PSModulePath

This article the purpose and usage of the $env:PSModulePath environment variable.

about_PSSession_Details

Provides detailed information about PowerShell sessions and the role they play in remote commands.

about_PSSessions

Describes PowerShell sessions (PSSessions) and explains how to establish a persistent connection to a remote computer.

about_Pwsh

Explains how to use the pwsh command-line interface. Displays the command-line parameters and describes the syntax.

about_Quoting_Rules

Describes rules for using single and double quotation marks in PowerShell.

about_Redirection

Explains how to redirect output from PowerShell to text files.

about_Ref

Describes how to create and use a reference type variable. You can use reference type variables to permit a function to change the value of a variable that is passed to it.

about_Registry_Provider

Registry

about_Regular_Expressions

Describes regular expressions in PowerShell.

about_Remote_Disconnected_Sessions

Explains how to disconnect and reconnect to a PowerShell Session (PSSession).

about_Remote_Jobs

Describes how to run jobs on remote computers.

about_Remote_Output

Describes how to interpret and format the output of remote commands.

about_Remote_Requirements

Describes the system requirements and configuration requirements for running remote commands in PowerShell.

about_Remote_Troubleshooting

Describes how to troubleshoot remote operations in PowerShell.

about_Remote_Variables

Explains how to use local and remote variables in remote commands.

about_Remote

Describes how to run remote commands in PowerShell.

about_Requires

Prevents a script from running without the required elements.

about_Reserved_Words

Lists the reserved words that cannot be used as identifiers because they have a special meaning in PowerShell.

about_Return

Exits the current scope, which can be a function, script, or script block.

about_Run_With_PowerShell

Explains how to use the "Run with PowerShell" feature to run a script from a file system drive.

about_Scopes

Explains the concept of scope in PowerShell and shows how to set and change the scope of elements.

about_Script_Blocks

Defines what a script block is and explains how to use script blocks in the PowerShell programming language.

about_Script_Internationalization

Describes the script internationalization features that make it easy for scripts to display messages and instructions to users in their user interface (UI) language.

about_Scripts

Describes how to run and write scripts in PowerShell.

about_Session_Configuration_Files

Describes session configuration files, which are used in a session configuration (also known as an "endpoint") to define the environment of sessions that use the session configuration.

about_Session_Configurations

Describes session configurations, which determine the users who can connect to the computer remotely and the commands they can run.

about_Signing

Explains how to sign scripts so that they comply with the PowerShell execution policies.

about_Simplified_Syntax

Describes easier, more natural-language ways of scripting filters for collections of objects.

about_Special_Characters

Describes the special character sequences that control how PowerShell interprets the next characters in the sequence.

about_Splatting

Describes how to use splatting to pass parameters to commands in PowerShell.

about_Split

Explains how to use the Split operator to split one or more strings into substrings.

about_Switch

Explains how to use a switch to handle multiple if statements.

about_Tab_Expansion

PowerShell provides completions on input to provide hints, enable discovery, and speed up input entry. Command names, parameter names, argument values and file paths can all be completed by pressing the Tab key.

about_Telemetry

Describes the telemetry collected in PowerShell and how to opt-out.

about_Thread_Jobs

Provides information about PowerShell thread-based jobs. A thread job is a type of background job that runs a command or expression in a separate thread within the current session process.