How to check free disk space on a linux server /how to check reaming space on hdd

The command df -h 

[patelm@xx Radio]$ df -h

Filesystem            Size  Used Avail Use% Mounted on

/dev/mapper/VolGroup00-LogVol00

                      145G   10G  128G   8% /

/dev/hda1              99M   12M   82M  13% /boot

none                  500M     0  500M   0% /dev/shm