Filesystem     1K-blocks    Used Available Use% Mounted on
udev             1049888       0   1049888   0% /dev
tmpfs             216072     860    215212   1% /run
/dev/sda1       20509264 2723808  16720600  15% /
tmpfs            1080344       0   1080344   0% /dev/shm
tmpfs               5120       0      5120   0% /run/lock
tmpfs            1080344       0   1080344   0% /sys/fs/cgroup
tmpfs             216068       0    216068   0% /run/user/1000