codice:
[io@michelino5: ~] $ ls -la /usr/X11R6/bin/xkbbell                                                         
-rwxr-xr-x    1 root     bin          8916 2003-09-17 00:20 /usr/X11R6/bin/xkbbell

[io@michelino5: ~] $ ls -la /usr/X11R6/include/X11/extensions/XKBbells.h 
-r--r--r--    1 root     root         5019 2003-09-17 00:15 /usr/X11R6/include/X11/extensions/XKBbells.h
ma a che serve?