df -h
Filesystem      Size  Used Avail Use% Mounted on
udev             32G     0   32G   0% /dev
tmpfs           6.3G  1.1M  6.3G   1% /run
/dev/md2        437G  279G  136G  68% /
tmpfs            32G     0   32G   0% /dev/shm
tmpfs           5.0M     0  5.0M   0% /run/lock
tmpfs            32G     0   32G   0% /sys/fs/cgroup
/dev/md1        485M  235M  225M  52% /boot
tmpfs           6.3G     0  6.3G   0% /run/user/0