Filesystem Size Used Avail Use% Mounted on devtmpfs 3.9G 0 3.9G 0% /dev tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs 3.9G 1.2M 3.9G 1% /run tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup /dev/sda2 20G 5.7G 13G 31% / /dev/sda1 252M 5.3M 246M 3% /boot/efi tmpfs 3.9G 12K 3.9G 1% /tmp /dev/sda4 434G 83M 434G 1% /home tmpfs 787M 16K 787M 1% /run/user/XXX