Updated lib module info

001/build/codex-001.aux

@@ -16,45 +16,45 @@
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001/build/codex-001.log

@@ -1,4 +1,4 @@
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  . You can also find a link
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+[2 <./images/ncsa4-0.png>] (build/codex-001.toc [3
+
+])
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- [3
-
-]
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 Chapter 1.
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 \OT1/jkp/m/n/10 1921 by Theodore and Mil-ton
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-[8]
+[9]
 Chapter 2.
-[9
+[10
 
-] [10] [11] [12] [13] [14] [15]
+] [11] [12] [13] [14] [15] [16]
 Chapter 3.
 
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 ] that need to be avail-
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-[16
+[17
 
-] [17] [18] [19]
+] [18] [19] [20] [21]
 Chapter 4.
 
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001/build/codex-001.toc

@@ -1,34 +1,34 @@
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-\contentsline {section}{\numberline {1.1}Calculators}{4}{section.1.1}%
-\contentsline {section}{\numberline {1.2}Speaking of Watches, Timex Used to make Home Computers}{6}{section.1.2}%
-\contentsline {section}{\numberline {1.3}The Joy of a Trash-80}{7}{section.1.3}%
-\contentsline {chapter}{\numberline {2}What's to Like About Linux}{9}{chapter.2}%
-\contentsline {section}{\numberline {2.1}Control…and an Opportunity}{9}{section.2.1}%
-\contentsline {section}{\numberline {2.2}Knowledge is Power}{10}{section.2.2}%
-\contentsline {section}{\numberline {2.3}The Unix Philosophy}{11}{section.2.3}%
-\contentsline {subsection}{\numberline {2.3.1}Where does the Unix Principle actually apply in real life?}{12}{subsection.2.3.1}%
-\contentsline {subsection}{\numberline {2.3.2}Where else does the Unix Principle \textit {not} apply that it probably should in real life?}{15}{subsection.2.3.2}%
-\contentsline {subsection}{\numberline {2.3.3}Where does the Unix Principle not apply in real life and this is actually a good thing?}{15}{subsection.2.3.3}%
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-\contentsline {section}{\numberline {4.1}Is This Really a Hack? Or Is It Just a Tip?}{20}{section.4.1}%
-\contentsline {section}{\numberline {4.2}What I Learned About \LaTeX \tmspace +\thinmuskip {.1667em} While Creating This Issue}{22}{section.4.2}%
-\contentsline {section}{\numberline {4.3}Coda: Why \LaTeX ?}{24}{section.4.3}%
+\contentsline {chapter}{\numberline {1}The Early Salad Days}{5}{chapter.1}%
+\contentsline {section}{\numberline {1.1}Calculators}{5}{section.1.1}%
+\contentsline {section}{\numberline {1.2}Speaking of Watches, Timex Used to make Home Computers}{7}{section.1.2}%
+\contentsline {section}{\numberline {1.3}The Joy of a Trash-80}{8}{section.1.3}%
+\contentsline {chapter}{\numberline {2}What's to Like About Linux}{10}{chapter.2}%
+\contentsline {section}{\numberline {2.1}Control…and an Opportunity}{10}{section.2.1}%
+\contentsline {section}{\numberline {2.2}Knowledge is Power}{11}{section.2.2}%
+\contentsline {section}{\numberline {2.3}The Unix Philosophy}{12}{section.2.3}%
+\contentsline {subsection}{\numberline {2.3.1}Where does the Unix Principle actually apply in real life?}{13}{subsection.2.3.1}%
+\contentsline {subsection}{\numberline {2.3.2}Where else does the Unix Principle \textit {not} apply that it probably should in real life?}{16}{subsection.2.3.2}%
+\contentsline {subsection}{\numberline {2.3.3}Where does the Unix Principle not apply in real life and this is actually a good thing?}{16}{subsection.2.3.3}%
+\contentsline {chapter}{\numberline {3}What Are All Those Files in the Linux Root?}{17}{chapter.3}%
+\contentsline {section}{\numberline {3.1}bin}{17}{section.3.1}%
+\contentsline {section}{\numberline {3.2}boot}{18}{section.3.2}%
+\contentsline {section}{\numberline {3.3}dev}{18}{section.3.3}%
+\contentsline {section}{\numberline {3.4}etc}{18}{section.3.4}%
+\contentsline {section}{\numberline {3.5}home}{18}{section.3.5}%
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+\contentsline {section}{\numberline {3.17}usr}{21}{section.3.17}%
+\contentsline {section}{\numberline {3.18}var}{21}{section.3.18}%
+\contentsline {chapter}{\numberline {4}Miscellany}{22}{chapter.4}%
+\contentsline {section}{\numberline {4.1}Is This Really a Hack? Or Is It Just a Tip?}{22}{section.4.1}%
+\contentsline {section}{\numberline {4.2}What I Learned About \LaTeX \tmspace +\thinmuskip {.1667em} While Creating This Issue}{24}{section.4.2}%
+\contentsline {section}{\numberline {4.3}Coda: Why \LaTeX ?}{26}{section.4.3}%

001/codex-001.tex

@@ -310,12 +310,46 @@ Some examples include:
 Users' home directories. If you have multiple users, you will see a directory in here for each user, named after their login name. Their personal settings are stored as invisible files in their home directory.
 
 \section{lib}
-This directory contains libraries that are essential for the binaries in \verb|/bin| and \verb|/sbin|. It also contains kernel module, whose filenames are identifiable as \verb|ld*| or \verb|lib*.so.*|.
+This directory contains libraries that are essential for the binaries in \verb|/bin| and \verb|/sbin|. It also contains kernel module, whose filenames are identifiable as \verb|ld*| or \verb|lib*.so.*|. Unlike bin, it only contains system binaries which require root privilege.
 
 \medskip
 
 \noindent \textbf{lib32} and \textbf{lib64} — We are still in a transition between 32-bit and 64-bit systems.\footnote{How is this even possible? SMDH.} These two libraries clarify which register size to use. A 64-bit system may have compatibility for 32-bit binaries.
 
+\medskip
+
+\noindent \textbf{lib/modules} — This directory stores kernel modules (pieces of code that can be loaded and unloaded into the kernel upon demand, adding functionality to the kernel without needing to reboot the system\footnote{Handy, that.}), with each installed kernel having its own directory. The Linux kernel typically loads kernel modules from the appropriate kernel version directory. 
+
+To show which kernel modules are currently loaded, run
+
+\begin{verbatim}
+$ lsmod
+\end{verbatim}
+
+To show information about a module:
+
+\begin{verbatim}
+$ modinfo module_name
+\end{verbatim}
+
+To list the options that are set for a loaded module:
+
+\begin{verbatim}
+$systool -v -m module_name
+\end{verbatim}
+
+To display the configuration of a particular module:
+
+\begin{verbatim}
+$ modprobe -c | grep module_name
+\end{verbatim}
+
+To list the dependancie of a module:
+
+\begin{verbatim}
+$ modprobe --show-depends module_name
+\end{verbatim}
+
 \section{media}
 Mount points for removable media. Using a jump drive or SD card? This is where they are. 
 
@@ -323,7 +357,7 @@ Mount points for removable media. Using a jump drive or SD card? This is where t
 Temporarily mounted filesystems.
 
 \section{opt}
-Add-on application software packages.
+Add-on application software packages. When some applications are installed directly from source, they will place themselves in \verb|opt|.
 
 \section{proc}
 A virtual filesystem providing process and kernel information as files. In general, the system automatically generates and populates these files.
@@ -433,7 +467,7 @@ Also, there is no easy way to get a word-count from a LaTeX document, nor is the
 \medskip
 
 \begin{center}
-\verb|pandoc input.tex -o output.odt|
+ \verb|$ pandoc input.tex -o output.odt|
 \end{center}
 
 \medskip