Level Goal
The password for the next level is stored in the file data.txt and is the only line of text that occurs only once
So this one gets tricky if you are not sure what you are looking for.
We will need to pipe to a couple different commands to get our results.
What we will use:
cat – to read the file
sort – to put the output in order
uniq -u – to find the unique line.
Killian Sherer 