Editing 2021.09.03.19:51

001/build/codex-001.aux

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 Chapter 4.
 
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001/build/codex-001.toc

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001/codex-001.tex

@@ -259,13 +259,14 @@ I've resisted buying a breadmaker for years, because I actually don't want a dev
 
 \chapter{What Are All Those Files in the Linux Root?}
 
-If you're using a Linux distro with a GUI (Ubuntu, Puppy OS, Mint, etc.) you land right in your Home folder whenever you click on ``Files''. But if you've ever gone all the way into the root of your computer (the Windows equivalent would be \verb|C:\|) you'll see a lot of folders\footnote{Technically, these are \textit{directories}, but let's not be pedantic. In a GUI, the icon usually looks like a folder.} there with mysterious three-letter names. Let's take a look at the them and what they contain.
+If you're using a Linux distro with a GUI (Ubuntu, Puppy OS, Mint, etc.) you land right in your Home folder whenever you click on ``Files''. But if you've ever gone all the way into the root of your computer (the Windows equivalent would be \verb|C:\|) you'll see a lot of folders\footnote{Technically, these are \textit{directories}, but let's not be pedantic. In a GUI, the icon usually looks like a folder.} there with mysterious three-letter names. Let's take a look at the them and what they contain.\footnotemark
+\footnotetext{For more information about this, consult the Linux Foundation Referenced specifications, which are found at \href{https://refspecs.linuxfoundation.org/}{https://refspecs.linuxfoundation.org/}. You're probably going to want the pdf version of this, which is at \href{https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.pdf}{https://refspecs.linuxfoundation.org/FHS\_3.0/fhs-3.0.pdf}. It really is amazing how much you can learn just by reading the specs and manuals.}
 
 \section{bin}
 This directory contains essential command binaries that need to be available for all users. Many of these include binaries that bring up the system or repair it. Your basic binaries like \verb|cat|, \verb|ls|, and \verb|mv| live here.
 
 \section{boot}
-Boot loader files. (It's complicated—kernels, and so forth. It is also three letters instead of three.)
+Boot loader files. (It's complicated—kernels, and so forth. It is also four letters instead of three.)
 
 \section{dev}
 Device files, such as \verb|/dev/disk0/|, \verb|dev/sda1|, etc. Also the home of the wonderful \verb|/dev/null|.