Help Topics on Windows PowerShell
Q
How to get help information on conceptual topics in Windows PowerShell? I want to understand the concept of environment variables.
✍: FYIcenter.com
A
The Get-Help cmdlet also displays information about conceptual
topics in Windows PowerShell, including topics about the Windows
PowerShell language. Conceptual Help topics begin with the "about_"
prefix, such as about_line_editing. (The name of the conceptual
topic must be entered in English even on non-English versions of
Windows PowerShell.)
Here is how to get a list of conceptual topics in Windows PowerShell:
PS C:\users\fyicenter> get-help about_* Name Synopsis ---- -------- about_Aliases Describes how to use alternate names for cmdle... about_Arithmetic_Operators Describes the operators that perform arithmeti... about_Arrays Describes arrays, which are data structures de... about_Assignment_Operators Describes how to use operators to assign value... about_Automatic_Variables Describes variables that store state informati... about_Break Describes a statement you can use to immediate... about_Classes Describes how you can use classes to develop i... about_Command_Precedence Describes how Windows PowerShell determines wh... about_Command_Syntax Describes the syntax diagrams that are used in... about_Comment_Based_Help Describes how to write comment-based help topi... about_CommonParameters Describes the parameters that can be used with... about_Comparison_Operators Describes the operators that compare values in... about_Continue Describes how the Continue statement immediate... about_Core_Commands Lists the cmdlets that are designed for use wi... about_Data_Sections Explains Data sections, which isolate text str... about_Debuggers Describes the Windows PowerShell debugger. about_DesiredStateConfiguration Provides a brief introduction to the Windows about_Do Runs a statement list one or more times, subje... about_Environment_Variables Describes how to access Windows environment va... about_Escape_Characters Introduces the escape character in Windows Pow... about_Eventlogs Windows PowerShell creates a Windows event log... about_Execution_Policies Describes the Windows PowerShell execution pol... about_For Describes a language command you can use to ru... about_Foreach Describes a language command you can use to tr... about_Format.ps1xml The Format.ps1xml files in Windows PowerShell ... about_Functions Describes how to create and use functions in W... about_Functions_Advanced Introduces advanced functions that act similar... about_Functions_Advanced_Methods Describes how functions that specify the Cmdle... about_Functions_Advanced_Param... Explains how to add parameters to advanced fun... about_Functions_CmdletBindingA... Describes the attribute that makes a function ... about_Functions_OutputTypeAttr... Describes an attribute that reports the type o... about_Group_Policy_Settings Describes the Group Policy settings for Window... about_Hash_Tables Describes how to create, use, and sort hash ta... about_History Describes how to get and run commands in the c... about_If Describes a language command you can use to ru... about_Jobs Provides information about how Windows PowerSh... about_Job_Details Provides details about background jobs on loca... about_Join Describes how the join operator (-join) combin... about_Language_Keywords Describes the keywords in the Windows PowerShe... about_Language_Modes Explains language modes and their effect on Wi... about_Line_Editing Describes how to edit commands at the Windows ... about_Locations Describes how to access items from the working... about_Logical_Operators Describes the operators that connect statement... about_Methods Describes how to use methods to perform action... about_Modules Explains how to install, import, and use Windo... about_Objects Provides essential information about objects i... about_Object_Creation Explains how to create objects in Windows Powe... about_Operators Describes the operators that are supported by ... about_Operator_Precedence Lists the Windows PowerShell operators in prec... about_Parameters Describes how to work with command parameters ... about_Parameters_Default_Values Describes how to set custom default values for... about_Parsing Describes how Windows PowerShell parses commands. about_Path_Syntax Describes the full and relative path name form... about_Pipelines Combining commands into pipelines in the Windo... about_PowerShell.exe Explains how to use the PowerShell.exe command... about_PowerShell_Ise.exe Explains how to use the PowerShell_Ise.exe com... about_Preference_Variables Variables that customize the behavior of Windo... about_Profiles Describes how to create and use a Windows Powe... about_Prompts Describes the Prompt function and demonstrates... about_Properties Describes how to use object properties in Wind... about_Providers Describes how Windows PowerShell providers pro... about_PSSessions Describes Windows PowerShell sessions (PSSessi... about_PSSession_Details Provides detailed information about Windows Po... about_PSSnapins Describes Windows PowerShell snap-ins and show... about_Quoting_Rules Describes rules for using single and double qu... about_Redirection Explains how to redirect output from Windows P... about_Ref Describes how to create and use a reference va... about_Regular_Expressions Describes regular expressions in Windows Power... about_Remote Describes how to run remote commands in Window... about_Remote_Disconnected_Sess... Explains how to disconnect from and reconnect ... about_Remote_FAQ Contains questions and answers about running r... about_Remote_Jobs Describes how to run background jobs on remote... about_Remote_Output Describes how to interpret and format the outp... about_Remote_Requirements Describes the system requirements and configur... about_Remote_Troubleshooting Describes how to troubleshoot remote operation... about_Remote_Variables Explains how to use local and remote variables... about_Requires Prevents a script from running without the req... about_Reserved_Words Lists the reserved words that cannot be used a... about_Return Exits the current scope, which can be a functi... about_Run_With_PowerShell Explains how to use the "Run with PowerShell" ... about_Scopes Explains the concept of scope in Windows Power... about_Scripts Describes how to run and write scripts in Wind... about_Script_Blocks Defines what a script block is and explains ho... about_Script_Internationalization Describes the script internationalization feat... about_Session_Configurations Describes session configurations, which determ... about_Session_Configuration_Files Describes session configuration files, which c... about_Signing Explains how to sign scripts so that they comp... about_Special_Characters Describes the special characters that you can ... about_Splatting Describes how to use splatting to pass paramet... about_Split Explains how to use the Split operator to spli... about_Switch Explains how to use a switch to handle multipl... about_Throw Describes the Throw keyword, which generates a... about_Transactions Describes how to manage transacted operations ... about_Trap Describes a keyword that handles a terminating... about_Try_Catch_Finally Describes how to use the Try, Catch, and Final... about_Types.ps1xml Explains how to use Types.ps1xml files to exte... about_Type_Operators Describes the operators that work with Microso... about_Updatable_Help Describes the updatable help system in Windows... about_Variables Describes how variables store values that can ... about_While Describes a language statement that you can us... about_Wildcards Describes how to use wildcard characters in Wi... about_Windows_PowerShell_5.0 Describes new features that are included in about_Windows_PowerShell_ISE Describes the features and system requirements... about_Windows_RT Explains limitations of Windows PowerShell 4.0... about_WMI Windows Management Instrumentation (WMI) uses the about_Wmi_Cmdlets Provides background information about Windows ... about_WQL Describes WMI Query Language (WQL), which can be about_WS-Management_Cmdlets Provides an overview of Web Services for Manag... about_BITS_Cmdlets Provides background information about the Back... about_CimSession Describes a CimSession object and the differen... about_Scheduled_Jobs Describes scheduled jobs and explains how to u... about_Scheduled_Jobs_Advanced Explains advanced scheduled job topics, includ... about_Scheduled_Jobs_Basics Explains how to create and manage scheduled jobs. about_Scheduled_Jobs_Troublesh... Explains how to resolve problems with schedule... about_ActivityCommonParameters Describes the parameters that Windows PowerShell about_Checkpoint-Workflow Describes the Checkpoint-Workflow activity, which about_Foreach-Parallel Describes the ForEach -Parallel language const... about_InlineScript Describes the InlineScript activity, which run... about_Parallel Describes the Parallel keyword, which runs the about_Sequence Describes the Sequence keyword, which runs sel... about_Suspend-Workflow Describes the Suspend-Workflow activity, which... about_WorkflowCommonParameters This topic describes the parameters that are v... about_Workflows Provides a brief introduction to the Windows
Now you know how to get help on about the concept of Environment Variables:
PS C:\users\fyicenter> get-help about_Environment_Variables ...
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⇒ Types of Commands on Windows PowerShell
⇠Help Commands on Windows PowerShell
⇑ Introduction of Windows PowerShell
⇑⇑ Windows PowerShell Tutorials
2016-11-08, 1657👍, 0💬
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