root@fourth:~# cd .ssh/
root@fourth:~/.ssh# ll
total 12
drwx------ 2 root root 4096 Jan  2 02:17 ./
drwx------ 9 root root 4096 Mar  5 04:47 ../
-rw------- 1 root root  419 Jan  2 02:17 authorized_keys
root@fourth:~/.ssh#