quinte:~ johnj$ wc -l .ssh/known_hosts
wc: .ssh/known_hosts: open: No such file or directory
pinova:~ johnj$ wc -l .ssh/known_hosts
4 .ssh/known_hosts
johnj@tintin:~$ wc -l .ssh/known_hosts
9 .ssh/known_hosts
johnj@sparrow:~$ wc -l .ssh/known_hosts
10 .ssh/known_hosts
johnj@tenkepadda:~$ wc -l .ssh/known_hosts
670 .ssh/known_hosts