Filesystem     1K-blocks    Used Available Use% Mounted on
/dev/sda1       18811828 3724512  14143600  21% /
udev             1015340       4   1015336   1% /dev
tmpfs             409636     792    408844   1% /run
none                5120       0      5120   0% /run/lock
none             1024088      80   1024008   1% /run/shm