On Freitag, 15. Mai 2009 04:46 Frédéric Perrin wrote: > You don't have to log out / log back in for a new group to take effect. > There is the adequately named newgrp(1) that spawns a new shell with a > different real and effective GID. Thanks for this background informations but i speak from adding a user to a existing group. Sorry for my english if this was the reason. See you, Attila