Linux cli exercises

Hi Experts!

For a course I'm giving, I'm looking for some Linux CLI exercises. Something like:
"Find the dir, starting from /, wich contains the most (bytes), and list the 10 largest files from that dir, sorted from heavy->light, and numbered"
The answer should be something like:
sudo find `sudo du -cx --max-depth=1 | sort -g | tail -3 | head -1 | cut -f 2` -type f -exec du {} + | sort -gr | head -10 | cat -n
We're using Debian and/or Ubuntu.
I will share points between useful suggestions.
thanks!
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wolfje_xpAsked:
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