Get-Helpコマンドレットを使う。以下はGet-Dateコマンドレットのヘルプを表示させた例。
> Get-Help Get-Date
NAME
Get-Date
SYNTAX
Get-Date [[-Date] ] [-Year ] [-Month ] [-Day ] [-Hour ] [-Minute ] [-Second ] [-Millisecond ] [-DisplayHint {Date | Time | DateTime}] [-Format ] []
Get-Date [[-Date] ] [-Year ] [-Month ] [-Day ] [-Hour ] [-Minute ] [-Second ] [-Millisecond ] [-DisplayHint {Date | Time | DateTime}] [-UFormat ] []
（以下表示省略）
