Commands in PowerShell are called cmdlets (pronounced: command-lets). Cmdlets come pre-packaged with all the necessary help information, just like the help available for any of the Linux commands. The difference is that there's a separate cmdlet available to get you the necessary help; help is not a switch in PowerShell.

Before we begin, let's launch the Terminal (launch any of the terminal emulators available on your computer). Let's now type pwsh to call PowerShell. Proceed with the steps below once you get the PS prompt.

To get help information in PowerShell:

Enter Get-Help at the prompt to get an overview of the help system in PowerShell. You would see an output like this:

PowerShell cmdlets are built with help information written in them. Running Get-Help without any arguments would simply show you basic information on help available in PowerShell, which is not quite remarkable. Let us look at another recipe to leverage Get-Help a little better.