Nautilus running

jean-christophe@atelier ~> gdb $(which nautilus) 9973
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Reading symbols from /usr/bin/nautilus...
Reading symbols from /usr/lib/debug/usr/bin/nautilus.debug...
Attaching to program: /usr/bin/nautilus, process 9973
ptrace: Opération non permise.
/home/jean-christophe/9973: Aucun fichier ou dossier de ce type.
(gdb) cont
The program is not being run.
-----------------------------------------------have to stop !