Filesystem     1K-blocks     Used Available Use% Mounted on
/dev/sdb4       49715572 19857236  27309824  43% /
none                   4        0         4   0% /sys/fs/cgroup
udev             2031304        4   2031300   1% /dev
tmpfs             408964     1372    407592   1% /run
none                5120        0      5120   0% /run/lock
none             2044816      268   2044548   1% /run/shm
none              102400       24    102376   1% /run/user