df -h
File system                  Dim. Usati Dispon. Uso% Montato su
/dev/mapper/ubuntu--vg-root   54G  7,4G     44G  15% /
none                         4,0K     0    4,0K   0% /sys/fs/cgroup
udev                         487M  4,0K    487M   1% /dev
tmpfs                        100M  1,1M     99M   2% /run
none                         5,0M     0    5,0M   0% /run/lock
none                         497M  344K    497M   1% /run/shm
none                         100M   52K    100M   1% /run/user
/dev/sda1                    236M  207M     17M  93% /boot