OverTheWire Bandit 8
The password for the next level is stored in the file data.txt and is the only line of text that occurs only once
Inside the home folder is a file called data.txt. I use the head command to take a peak inside it. Using the word count utility, w can see there are 1001 lines to process.
We use the sort and uniq utilities to sort the file,and count the number of occurrences. We are after the only unique line in the file, which we find by using the grep utility.