In the last level, we used grep to find a known pattern in a file. For Bandit Level 8 to 9, the challenge is more abstract: we need to find a line that is unique within a file filled with duplicates. The password isn’t next to a keyword; the password is the unique line itself.

This requires us to move beyond single commands and learn how to create a pipeline, chaining multiple tools together to perform a complex data analysis task in a single line.