Xubuntu how to check used and free disk space

How can I check free and used disk space on Xubuntu?

On Ubuntu, this was very easy to do, but I don't see a program that accomplishes this now with Xubuntu.

Solution 1:

as simple as df -h command, sample output below

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