-h
Filesystem      Size  Used Avail Use% Mounted on
udev            240M     0  240M   0% /dev
tmpfs            50M  636K   49M   2% /run
/dev/vda1        20G   19G     0 100% /
tmpfs           247M     0  247M   0% /dev/shm
tmpfs           5.0M     0  5.0M   0% /run/lock
tmpfs           247M     0  247M   0% /sys/fs/cgroup
tmpfs            50M     0   50M   0% /run/user/1001