1.概述

du常用于查看磁盘剩余空间大小。

2.不带参数

默认情况下，df显示磁盘空间使用情况

[root@smart linux]# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/vg_smart-lv_root 18069936 5379972 11772052 32% /
tmpfs 969824 224 969600 1% /dev/shm
/dev/sda1 495844 37653 432591 9% /boot
[root@smart linux]#

3.以人类可读方式

df -h

[root@smart linux]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_smart-lv_root 18G 5.2G 12G 32% /
tmpfs 948M 224K 947M 1% /dev/shm
/dev/sda1 485M 37M 423M 9% /boot

4.指定文件夹路径

df [dir]

```
[root@smart linux]# df -h /home
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_smart-lv_root 18G 5.2G 12G 32% /

Enjoy！

Juyin@2017/11/16