simples como df -h
, amostra abaixo
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/xubuntu--vg-root 290G 5.3G 270G 2% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
udev 1.9G 4.0K 1.9G 1% /dev
tmpfs 375M 916K 374M 1% /run
none 5.0M 4.0K 5.0M 1% /run/lock
none 1.9G 700K 1.9G 1% /run/shm
none 100M 32K 100M 1% /run/user
/dev/sda1 228M 45M 172M 21% /boot