[/Volumes/ADVANTAGE2]$ df -h .
Filesystem   Size   Used  Avail Capacity iused ifree %iused  Mounted on
/dev/disk2  3.9Mi  2.4Mi  1.5Mi    63%     512     0  100%   /Volumes/ADVANTAGE2
[/Volumes/ADVANTAGE2]$ tree --du -h
.
├── [1.2M]  Adv2\ SmartSet\ App\ (Win)_1.0.1.exe
├── [1.2M]  SmartSet\ App\ Help.pdf
├── [8.5K]  active
│   └── [   0]  qwerty.txt
└── [ 512]  firmware

 2.4M used in 3 directories, 3 files