Updating and using Help

Help documentation is very important in PowerShell, regardless of whether a certain cmdlet is packaged by providers such as Microsoft, VMware, or Citrix, or community-created. Help is not a switch in PowerShell. PowerShell uses the Get-Help cmdlet (pronounced command-let) to fetch the Help information enclosed within cmdlets.

By default, PowerShell is installed with minimal Help information, which contains only the description and the parameters. In this recipe, we will update Help and learn to get Help by using cmdlets, specific parameters, or certain keywords.