Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda1             73718652  23852692  46121212  35% /
none                   1543924       400   1543524   1% /dev
none                   1548144       332   1547812   1% /dev/shm
none                   1548144       312   1547832   1% /var/run
none                   1548144         0   1548144   0% /var/lock
none                   1548144         0   1548144   0% /lib/init/rw
/dev/sdb1            488264736 131250592 357014144  27% /media/My Book_