How to spot a memory thief in Ubuntu?

Question

linux

Please explain what this magic is and how to dispel it:

[email protected]:~$ du -sh *
6.6G    Dropbox
[email protected]:~$ cd Dropbox
[email protected]:~/Dropbox$ du -sh *
81M     Develop
8.0K    backup.txt
[email protected]:~/Dropbox$ ls -lh *
-rw-r--r-- 1 kshnkvn kshnkvn    8 Jun 26 12:01 backup.txt
Develop:
total 16K
drwxr-xr-x 4 kshnkvn kshnkvn 4.0K Jun 27 14:13 parser_catawiki
drwxr-xr-x 4 kshnkvn kshnkvn 4.0K Jun 25 22:28 parser_google_maps
[email protected]:~/Dropbox$

There is no space on the disk, files occupying it too ¯\_(ツ)_/¯

Answer 1

glob * does not expand hidden files (starting with .)
Try [email protected]:~/Dropbox$ ls -lah