You've gotten a partial dump of the disk[1] from the hangar's machine, and you're pretty sure the pilot's password is cleverly hidden somewhere within it...

The disk image can be found on the shell machines at /problems/pilot_logic.img and the contents of the image are available in /problems/pilot_logic/
Hint: Most filesystems have a way to hide files from being listed. How can you make ls ignore it? 

[1]https://2013.picoctf.com/problems/pilot_image