Filesystem      1K-blocks      Used  Available Use% Mounted on
udev              3026744         0    3026744   0% /dev
tmpfs              610648     63164     547484  11% /run
/dev/sdg5       284616256  37099316  233036148  14% /
tmpfs             3053224      5832    3047392   1% /dev/shm
tmpfs                5120         4       5116   1% /run/lock
tmpfs             3053224         0    3053224   0% /sys/fs/cgroup
tmpfs              610644       144     610500   1% /run/user/1000
/dev/sr0         35910848  35910848          0 100% /media/doc/KNOCK_KNOCK
/dev/sdb1      2930232316 904373376 2025858940  31% /media/doc/My Book