How to change the delete Message "Are you sure you want to delete" in Drupal 7 I want to change the message "Are you sure you want to delete" to simple "delete".
Can someone explain how I can do that?
One option (that requires no coding) is to use the String Overrides module.

It allows you to replace any string with another string that is passed though the t() function, though a nice easy to use GUI.

The other option is to use hook_form_alter(). For more details on that see the question that Rupesh linked to.