df  -h

root@Microknoppix:/etc/apt/sources.list.d# df -h
Filesystem      Size  Used Avail Use% Mounted on
rootfs          7.8G   72K  7.8G   1% /
tmpfs            13G     0   13G   0% /ramdisk
tmpfs           4.4G  4.4G   11M 100% /mnt-system
/dev/cloop      2.0G  2.0G     0 100% /KNOPPIX
/dev/cloop1     9.6G  9.6G     0 100% /KNOPPIX1
/dev/sdb3        25G  1.1G   24G   5% /KNOPPIX-DATA
unionfs          25G  1.1G   24G   5% /UNIONFS
tmpfs            20M  3.4M   17M  17% /run
tmpfs            10M  4.0K   10M   1% /UNIONFS/var/lock
tmpfs           100M   72K  100M   1% /UNIONFS/var/log
tmpfs           2.0G   20M  2.0G   1% /tmp
cgroup           12K     0   12K   0% /sys/fs/cgroup
udev             20M     0   20M   0% /dev
tmpfs           2.0G   58M  2.0G   3% /dev/shm
root@Microknoppix:/etc/apt/sources.list.d#