You can start by dumping all Help information into a file to learn more about a PowerShell cmdlet. You can then read all details about the cmdlet while you are playing with it.
This is how you dump all Help information for Get-Process:
Get-Help -Name Get-Process -Full > $env:temp\getprocess.txt
And this is how you open the file:
Invoke-Item “$env:temp\getprocess.txt”
