What is the significance of the 755, mentioned in the previous posting? Click the picture to watch an excellent animated presentation on UNIX file permissions.
It shows you how binary numbering works, compared to the decimal numbering that we taken for granted, because we have two hands with five digits each. The value of 1112 is 710. So the decimal numbers for the permissions are 755, 744, etc., and are pronounced “seven, five, five,” and not “seven hundred fifty-five.”
Jean,
There’s nothing you can do to set these numbers. Only I can do that. I’d changed the number in the directory that has the pictures, and they were unavailable for maybe half an hour before I realized my mistake.