du --max-depth=1 -h
juwan@juwan-n85-dls:~/v831/out/v831-sipeed/compile_dir/target/rootfs$ du --max-depth=1 -h
244K ./sbin
4.0K ./squashfs
736K ./bin
4.0K ./sys
4.0K ./root
4.0K ./proc
4.0K ./dev
1.4M ./etc
16K ./mnt
4.0K ./overlay
8.0K ./rom
8.0K ./tmp
4.0K ./data
3.0M ./lib
118M ./usr
37M ./home
159M .