文件系统           1K-块     已用      可用 已用% 挂载点
udev             4020828        0   4020828    0% /dev
tmpfs             808728     9992    798736    2% /run
/dev/sdb3       17586000  7592572   9077052   46% /
tmpfs            4043636   121728   3921908    4% /dev/shm
tmpfs               5120        4      5116    1% /run/lock
tmpfs            4043636        0   4043636    0% /sys/fs/cgroup
/dev/loop1          6144     6144         0  100% /snap/ssocks/2
/dev/loop0         80256    80256         0  100% /snap/core/1577
/dev/loop2         81408    81408         0  100% /snap/core/1689
/dev/sdb5         274399   173304     82407   68% /boot
/dev/sda5      515009792 33782396 454996664    7% /home
tmpfs             808724      148    808576    1% /run/user/1000