total 32
drwxr-xr-x 8 root root 4096 Jun 7 23:50 .
drwxr-xr-x 10 root root 4096 Nov 12 2014 ..
drwxr-xr-x 24 root root 4096 May 16 14:33 linux-headers-3.13.0-46
drwxr-xr-x 7 root root 4096 May 16 14:33 linux-headers-3.13.0-46-generic
drwxr-xr-x 24 root root 4096 May 16 14:29 linux-headers-3.13.0-52
drwxr-xr-x 7 root root 4096 May 16 14:30 linux-headers-3.13.0-52-generic
drwxr-xr-x 24 root root 4096 May 22 07:48 linux-headers-3.13.0-53
drwxr-xr-x 7 root root 4096 May 22 07:48 linux-headers-3.13.0-53-generic