OverTheWire Bandit 17
There are 2 files in the homedirectory: passwords.old and passwords.new. The password for the next level is in passwords.new and is the only line that has been changed between passwords.old and passwords.new
We can see there are 2 files in the home folder.
Use the diff command to find the differences between the 2 files.
I use the first password to ssh back in as bandit18. It works, but we are booted out immediately. We were warned this would happen as it is part of the next level.