About documents describe features of a language or concepts that apply to more than one command. These items do not fit into help for individual commands.
PowerShell Core: Where is About?
The PowerShell Core help files are not available as I write this at the time of writing. The examples that are shown here can only be applied to PowerShell 5.1 or lower.
The PowerShell Core help files are not available as I write this at the time of writing. The examples that are shown here can only be applied to PowerShell 5.1 or lower.
The list of help files may be viewed by running Get-Help with the category as HelpFile, as demonstrated in the following code:
Get-Help -Category HelpFile
These files cover a huge variety of topics from aliases, to modules, to WMI:
Name Category Synopsis
---- -------- --------
about_Aliases HelpFile SHORT DESCRIPTION
about_Arithmetic_Operators HelpFile SHORT DESCRIPTION
about_Arrays HelpFile SHORT DESCRIPTION
about_Assignment_Operators HelpFile SHORT DESCRIPTION
about_Automatic_Variables HelpFile SHORT DESCRIPTION
about_Break HelpFile SHORT DESCRIPTION
about_Classes HelpFile SHORT DESCRIPTION
about_Command_Precedence HelpFile SHORT DESCRIPTION
about_Command_Syntax HelpFile SHORT DESCRIPTION
about_Comment_Based_Help HelpFile SHORT DESCRIPTION
about_CommonParameters HelpFile SHORT DESCRIPTION
about_Comparison_Operators HelpFile SHORT DESCRIPTION
about_Continue HelpFile SHORT DESCRIPTION
about_Core_Commands HelpFile SHORT DESCRIPTION
about_Data_Sections HelpFile SHORT DESCRIPTION
...