-bash-2.05b$ ls
user.class.php user.class.php.LCK
-bash-2.05b$ rm user.class.php
-bash-2.05b$

NOOOOOOOOOOOOOOOOOOOOOOOOO! *sigh*

Luckily I remembered I had to copy the file from one server to another for testing something so I had a backup of it, but DAMNIT I'm an idiot!