Hackthissite.org Basic 9

This is still UNIX, and we still need to use the SSI. Go back to level 8. Just write:" <!--#exec cmd="ls ../../9" --> " in the "Enter your name" field. After the textfile has been saved, you open the file and you will get something like:
Then you type in the URL:" http://www.hackthissite.org/missions/basic/9/p91e283zc3.php ", and you get your password.