os.Path.chOwn
Changes the UNIX™ owner and group of a file.
Syntax
os.Path.chOwn(
   path STRING,
   uid INTEGER,
   gui INTEGER )
  RETURNS INTEGER - path is the name of the file.
 - uid is the user id.
 - gui is the group id.
 
Usage
This method can only be used on UNIX!
Function returns TRUE on success, FALSE otherwise.