>> There are many good tutorials and guides available in books and online, >> e.g. https://wiki.debian.org/Permissions .
>It by the way has a wrong description about unsetting special mode bits > by doing e.g. `chmod '0755'' (see at "Case 4"), which I will correct as > soon as possible -> more users, less mistakes.. No. Since it is not standard documentation I am a bit exhausted by discussion about corrections in free software community in difficult english just now. I would prefer to not correct this mistake now. What about you? greetings, kalle
