\documentclass[10pt,a4paper]{article}

% Packages
\usepackage{fancyhdr}           % For header and footer
\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
\usepackage{graphicx}           % For images
\usepackage{xcolor}             % For hex colours
%\usepackage[utf8x]{inputenc}    % For unicode character support
\usepackage[T1]{fontenc}        % Without this we get weird character replacements
\usepackage{colortbl}           % For coloured tables
\usepackage{setspace}           % For line height
\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{asterythm}
\pdfinfo{
  /Title (comp-206-final.pdf)
  /Creator (Cheatography)
  /Author (asterythm)
  /Subject (COMP 206 Final Cheat Sheet)
}

% Lengths and widths
\addtolength{\textwidth}{6cm}
\addtolength{\textheight}{-1cm}
\addtolength{\hoffset}{-3cm}
\addtolength{\voffset}{-2cm}
\setlength{\tabcolsep}{0.2cm} % Space between columns
\setlength{\headsep}{-12pt} % Reduce space between header and content
\setlength{\headheight}{85pt} % If less, LaTeX automatically increases it
\renewcommand{\footrulewidth}{0pt} % Remove footer line
\renewcommand{\headrulewidth}{0pt} % Remove header line
\renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit
% This two commands together give roughly
% the right line height in the tables
\renewcommand{\arraystretch}{1.3}
\onehalfspacing

% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
\newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns
\newcommand{\tn}{\tabularnewline} % Required as custom column type in use

% Font and Colours
\definecolor{HeadBackground}{HTML}{333333}
\definecolor{FootBackground}{HTML}{666666}
\definecolor{TextColor}{HTML}{333333}
\definecolor{DarkBackground}{HTML}{ABABAB}
\definecolor{LightBackground}{HTML}{F4F4F4}
\renewcommand{\familydefault}{\sfdefault}
\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{COMP 206 Final Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{asterythm} via \textcolor{DarkBackground}{\uline{cheatography.com/197257/cs/41556/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}asterythm \\
  \uline{cheatography.com/asterythm} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 5th December, 2023.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{4}

\begin{tabularx}{3.833cm}{x{1.13289 cm} x{2.30011 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Basic Bash commands}}  \tn
% Row 0
\SetRowColor{LightBackground}
pwd & print working directory \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
touch & create file \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
cat & display file \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
\textgreater{} & redirect output to file \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\textgreater{}\textgreater{} & append output to file \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
| & pipe to another command \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
diff {\emph{file1}} {\emph{file2}} & compare two files \tn 
% Row Count 8 (+ 2)
% Row 7
\SetRowColor{white}
ln / ln -s & create hard (alt name) / symbolic (new file that auto-redirects) link \tn 
% Row Count 11 (+ 3)
% Row 8
\SetRowColor{LightBackground}
sort {\emph{file}} & sort lines \tn 
% Row Count 12 (+ 1)
% Row 9
\SetRowColor{white}
wc {\emph{file}} & word count \tn 
% Row Count 13 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{cp, mv, and rm options: -i confirmation prompt; -f force, -r recursively visit subdirectories}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{0.92691 cm} x{2.50609 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Wildcards}}  \tn
% Row 0
\SetRowColor{LightBackground}
* & any pattern \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
? & any single character \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
{[}xyz{]} / {[}x-z{]} & any of these / any within the range \tn 
% Row Count 4 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{Globbing: Shell interprets wildcards as the {\bf{list}} of all matching pathnames}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{1.3732 cm} x{2.0598 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{regex}}  \tn
% Row 0
\SetRowColor{LightBackground}
grep '{\emph{STRING}}' {\emph{FILE\_LIST}} & finds occurrences of STRING within FILE\_LIST \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
-i & ignore case \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
-c & return only count: \# of matching lines \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
-v & inverted search (return only non-matches) \tn 
% Row Count 7 (+ 2)
% Row 4
\SetRowColor{LightBackground}
-n & display line number with matching line \tn 
% Row Count 9 (+ 2)
% Row 5
\SetRowColor{white}
-l & list only file names \tn 
% Row Count 10 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{p{0.48062 cm} x{2.95238 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Archiving}}  \tn
% Row 0
\SetRowColor{LightBackground}
tar - & combine several files into one \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
-c & create new tar archive \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
-r & update tar archive \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
-x & extract from tar archive \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
-f & specify archive file name \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
-v & verbose mode \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
-z & compress archive w gzip \tn 
% Row Count 7 (+ 1)
% Row 7
\SetRowColor{white}
gzip & compress a single file \tn 
% Row Count 8 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{3.833cm}}{A regular tar archive file ends with .tar; a gzipped tar archive file ends with .tgz}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}