alertnote ?-w win? title ?args?
Display a message in a standard OS X alert box. If more than one argument is given, the first is displayed in boldface, and the remaining arguments are joined by a space and displayed in a smaller font below the first. Otherwise the entire message is in the smaller font. The only button in the alert box is OK and the return value is the empty string.
If the -w option is specified, the alert is displayed in a sheet window attached to the window designated by the win argument. Otherwise, it is displayed as a modal dialog.