Single click to activate items

Select this option to perform the default action for an item when you click on the item. When this option is selected, and you point to an item, the title of the item is underlined. 

Double click to activate items

Select this option to perform the default action for an item when you double-click on the item. 

Run executable files when they are clicked

Select this option to run an executable file when you choose the executable file. An executable file is a text file that can execute, that is, a shell script. 

View executable files when they are clicked

Select this option to display the contents of an executable file when you choose the executable file. 

Ask each time

Select this option to display a dialog when you choose an executable file. The dialog asks whether you want to execute the file or display the file. 

Ask before emptying the Trash or deleting files

Select this option to display a confirmation message before Trash is emptied, or files are deleted.

Include a Delete command that bypasses Trash

Select this option to add a Delete menu item to the following menus:

• The Edit menu.

• The popup menu that is displayed when you right-click on a file, folder, or desktop background object.

When you select an item then choose the Delete menu item, the item is deleted from your file system immediately.