fixed problem

In my case the main cause of run-away heating by Ebony, the most overworked white MacBook in the history of laptops, was the recently reinstalled Lexmark X83 printer and scanner's start-up item.

Fun web fact for the day!

One little itty bitty space in the bracket part of the rewrite rule:

RewriteRule ^product/raptors/assimilate$ /product/raptors/assimilate/features [NC, R=301,L]

(instead of:
RewriteRule ^product/raptors/assimilate$ /product/raptors/assimilate/features [NC,R=301,L]
)

causes the entire web site to be replaced with:

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

zen subtheme not recognizing changes to node.tpl.php
but it IS taking modifications made to node-TYPE.tpl.php

The culprit?
og

Organic Group's node-og-group-post.tpl.php overrides node.tpl.php

If you are trying to figure out why your panel site is wrong or has no content at all, you may have reached this page.

Drupal panels not deleting menus cleanly? No, that's not it. At least in this case, the menu path of a View was being used instead of the Panel.

bash "No such file or directory"

Every time I opened Terminal:

bash: /home/ben/.bashrc-agaric: No such file or directory

But my ~/.bashrc was clear of calling that file.

And source .bashrc produced no errors. So where was it still calling the old file path?

Answer:

sudo vi /etc/bash.bashrc

(On Ubuntu. The global bash file may be in other places also.)