Filesystem                  1K-blocks     Used Available Use% Mounted on
/dev/mapper/ubuntu--vg-root  55771500 12979752  39935608  25% /
none                                4        0         4   0% /sys/fs/cgroup
udev                           753184        4    753180   1% /dev
tmpfs                          153628     1160    152468   1% /run
none                             5120        0      5120   0% /run/lock
none                           768124      148    767976   1% /run/shm
none                           102400       24    102376   1% /run/user
/dev/sda1                      240972   214346     14185  94% /boot
/home/alain/.Private         55771500 12979752  39935608  25% /home/alain