Filesystem     1K-blocks     Used Available Use% Mounted on
udev             1954428        0   1954428   0% /dev
tmpfs             394916    11816    383100   3% /run
/dev/sda5       79021976 16080912  58903896  22% /
tmpfs            1974564    67480   1907084   4% /dev/shm
tmpfs               5120        4      5116   1% /run/lock
tmpfs            1974564        0   1974564   0% /sys/fs/cgroup
/dev/sda2          97280    38278     59002  40% /boot/efi
tmpfs             394916       12    394904   1% /run/user/121
tmpfs             394916       40    394876   1% /run/user/1001
/dev/sdb         1953032   217828   1735204  12% /media/jjia/2A21-1AF0