On-Line vi Reference Manual: Useful If You Get Stuck
Dave Aiello wrote, "Aside: I feel like we are returning to our geek roots with this article."
A couple of days ago, we found ourselves casting about for a reminder of what ex commands are useable in the vi file editor (present on nearly all UNIX systems). In searching the Web, we found this handy vi Reference, which should get most people through the day, until they can get back home and pick up their O'Reilly book.