If you are using GNAT, see GNAT.OS_Lib In general this is done the same way as you would in any other language, through APIs to the OS. David Botton "Mathias Calb�rac" wrote in message news:3ccb178a$0$15595$626a54ce@news.free.fr... > Hi ! > > I am learning ada, and I enjoy ada programming, but I don't know how to use > the OS commands (example : Dir, cls commands). > Is there any free package to do that ? > Thank you for helping me. > Mathias. > > >