Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda1             19228276   9491240   8760288  53% /
none                   1535580       384   1535196   1% /dev
none                   1539792      1756   1538036   1% /dev/shm
none                   1539792       788   1539004   1% /var/run
none                   1539792         0   1539792   0% /var/lock
none                   1539792         0   1539792   0% /lib/init/rw
/dev/sda3              9614148   2934124   6191648  33% /var
/dev/sda4            931293468 718896912 165089552  82% /home
/dev/sdb1            244196000  42855156 201340844  18% /media/usb disk