ls -l /usr

total 156
drwxr-xr-x   3 grumpycat root 69632 May  8 03:00 bin
drwxr-xr-x   2 root      root  4096 May  8 03:00 etc
drwxr-xr-x   2 root      root  4096 Apr 29 16:31 games
drwxr-xr-x  52 root      root  4096 May  8 03:00 include
drwxr-xr-x 214 root      root 36864 May  6 11:38 lib
drwxr-xr-x  10 root      root  4096 May  5 23:30 local
drwxr-xr-x   2 root      root 12288 May  6 11:48 sbin
drwxr-xr-x 384 root      root 12288 May  8 03:00 share
drwxr-xr-x  10 root      root  4096 Apr 22 09:50 src

ls -l /

total 89
drwxr-xr-x   2 root root  4096 Apr 22 09:50 bin
drwxr-xr-x   4 root root  1024 Apr 22 09:52 boot
drwxrwxr-x   2 root root  4096 Mar  6 20:03 cdrom
drwxr-xr-x  16 root root  4280 May  8 13:51 dev
drwxr-xr-x 158 root root 12288 May  8 12:47 etc
drwxr-xr-x   4 root root  4096 Mar 20 15:04 home
lrwxrwxrwx   1 root root    33 Apr 22 09:51 initrd.img -> boot/initrd.img-3.11.0-19-generic
lrwxrwxrwx   1 root root    34 Apr 22 09:51 initrd.img.old -> /boot/initrd.img-3.11.0-19-generic
drwxr-xr-x  23 root root  4096 Mar  6 20:33 lib
drwx------   2 root root 16384 Mar  6 19:59 lost+found
drwxr-xr-x   3 root root  4096 May  8 07:08 media
drwxr-xr-x   2 root root  4096 Oct 14  2013 mnt
drwxr-xr-x  10 root root  4096 Apr 27 14:57 opt
dr-xr-xr-x 233 root root     0 May  8 12:47 proc
drwx------   9 root root  4096 May  8 03:01 root
drwxr-xr-x  27 root root   840 May  8 12:47 run
drwxr-xr-x   2 root root 12288 Apr 22 09:49 sbin
drwxr-xr-x   2 root root  4096 Oct 17  2013 srv
dr-xr-xr-x  13 root root     0 May  8 12:47 sys
drwxrwxrwt   9 root root  4096 May  8 14:17 tmp
drwxr-xr-x  11 root root  4096 May  8 03:00 usr
drwxr-xr-x  15 root root  4096 Apr 23 09:32 var
lrwxrwxrwx   1 root root    30 Apr 22 09:51 vmlinuz -> boot/vmlinuz-3.11.0-19-generic
lrwxrwxrwx   1 root root    30 Apr 22 09:51 vmlinuz.old -> boot/vmlinuz-3.11.0-19-generic