Hello!
Script:
$web = Get-SPWeb "http://site/"
$list = $web.Lists["MyList"]
$fields = New-Object System.Collections.Specialized.StringCollection
$fields.Add("ID")
$fields.Add("LinkTitle")
$view = $list.Views.Add("MyGridView", $fields, "", 100, $True, $False, "Grid", $False)
Also you can see some examples
here.
Don't happy, be worry...