16 - Plain sight - 200 pts

Description
Category: web

The time to strike is now! This fiendish AED employee decided to hide secret data on this website.
http://a4.amalgamated.biz/cgi-bin/chroot.cgi

It seems that the employee was in the middle of creating the website when our operatives stumbled upon it.
The good news is that there are surely bugs in the development version of this problem, the bad news is currently no feedback printed to users.
Some of our leet operatives have determined a little bit about the machine: it runs in a read-only environment with only
bash cat dc expand grep hd head id less ls more nl od pr rev sh sleep sort sum tail tar tr true tsort ul wc yes
installed.

Find what AED is hiding, good luck and godspeed.