Filesystem Size Used Avail Use% Mounted on devtmpfs 1.9G 0 1.9G 0% /dev tmpfs 1.9G 0 1.9G 0% /dev/shm tmpfs 1.9G 1.1M 1.9G 1% /run tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup /dev/sdb2 20G 5.7G 13G 31% / /dev/sdb1 252M 5.3M 246M 3% /boot/efi tmpfs 1.9G 8.0K 1.9G 1% /tmp /dev/sdb4 50G 65M 50G 1% /home tmpfs 384M 20K 384M 1% /run/user/XXX