文件系统           1K-块     已用     可用 已用% 挂载点
udev             1959740        0  1959740    0% /dev
tmpfs             397900     6388   391512    2% /run
/dev/sda2      111911672 30735288 75468508   29% /
tmpfs            1989484    44920  1944564    3% /dev/shm
tmpfs               5120        4     5116    1% /run/lock
tmpfs            1989484        0  1989484    0% /sys/fs/cgroup
/dev/loop0         89984    89984        0  100% /snap/core/5548
/dev/loop1         89984    89984        0  100% /snap/core/5662
/dev/loop2         93184    93184        0  100% /snap/core/6405
/dev/sda1         523248     3496   519752    1% /boot/efi
tmpfs             397900       48   397852    1% /run/user/1000