Filesystem Size Used Avail Use% Mounted on devtmpfs 3.4G 0 3.4G 0% /dev tmpfs 3.4G 0 3.4G 0% /dev/shm tmpfs 3.4G 2.5M 3.4G 1% /run tmpfs 3.4G 0 3.4G 0% /sys/fs/cgroup /dev/sda2 20G 6.9G 12G 37% / /dev/sda1 252M 5.3M 246M 3% /boot/efi tmpfs 3.4G 8.0K 3.4G 1% /tmp /dev/sda4 123G 73M 123G 1% /home tmpfs 693M 16K 693M 1% /run/user/XXX