[steffe@lab5 steffe]$ find / -name lpq -print            
find: /lost+found: Permission denied
find: /boot/lost+found: Permission denied
find: /exp/lost+found: Permission denied
find: /proc/1/fd: Permission denied
find: /proc/2/fd: Permission denied
...
...
...
----------------------------------------------------
[steffe@lab5 steffe]$ find / -name lpq -print 2>/dev/null
/usr/bin/lpq
...
...