The Lost Treasure Map

Linux lab Intermediate 5 tasks 20 points

A pirate tore the treasure map into pieces and hid them all over ~/island, some in hidden places. Find the pieces, work out which one leads to the treasure, and claim it with the captain's password.

How it works: the terminal below is a real Linux machine running in your browser. Click it and type. Tasks tick themselves off as you complete them; questions are answered in the box under each task. Press Reset any time for a fresh machine. Your password on this machine (for sudo) is student.

Getting your Linux machine ready…

The first start downloads about 20 MB. After that your browser keeps it, and labs start in a moment.

Hints

Start with find: it shows hidden folders that plain ls skips.

Solution explanation

find walks every folder, including .hidden-tunnel, and finds 4 pieces. grep -rl TREASURE lists the file that mentions the treasure. ls -a reveals the hidden .captain file, and echo with > writes the claim.

Show solution

find ~/island -name 'map_piece_*.txt'
grep -rl TREASURE ~/island
mkdir ~/loot
cp ~/island/jungle/old-temple/map_piece_3.txt ~/loot/
ls -a ~/island/cave
cat ~/island/cave/.captain
echo blackpearl > ~/loot/claim.txt