Last week there was a disk space problem on an AWS instance, we couldn't figure out where space was being used.
The good old ls / ll wasn't going to cut it, had to search a way to discover what folder was taking up so much space.
Starting from the root $ cd /
I used the command below:
$ du -hcsx .[!.]* * | sort -rh | head
With the help of that command, I was able to drill down to the folder that had up to 100GB total size in files.