Thanks nate and Paul.. Do I need to use -R recursive option for any of the commands you mentioned? - CS. On Tue, Jan 12, 2010 at 3:58 PM, Paul Heinlein <heinlein at madboa.com> wrote: > On Tue, 12 Jan 2010, Carlos Santana wrote: > >> Hi, >> >> I have changed directory ownership permissions recursively such that >> it is owned by username:groupname , where groupname is not the >> default group, i.e., username. However, when a user creates a new >> file the default permissions are again username:username. >> >> How can I give ownership permissions on a particular directory so >> that any files created in that directory will always have specifc >> username:groupname permissions? > > chmod 2775 /your/directory > > This will assign group ownership of any files created in > /your/directory to the group that owns that directory. > > It won't, however, change user ownership. Allowing that sort of > operation would be a great avenue for a denial-of-service attach on > any filesystem with quotas. > >> Also is there any option that would allow only owner to delete >> files, even though group has rwx permissions? > > chmod 3775 /your/directory > > This combines the 2775 trick mentioned above with an o+s operation. > Setting the "sticky bit" on the all-users permissions allows only > owners to dispose of files. See the permissions on /tmp or /var/tmp > for an example. > > -- > Paul Heinlein <> heinlein at madboa.com <> http://www.madboa.com/ > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >