$ df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1        15G  9.5G  4.1G  71% /
none            4.0K     0  4.0K   0% /sys/fs/cgroup
udev            480M  4.0K  480M   1% /dev
tmpfs            98M  424K   98M   1% /run
none            5.0M     0  5.0M   0% /run/lock
none            490M     0  490M   0% /run/shm
none            100M     0  100M   0% /run/user