\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{aparrill}
\pdfinfo{
  /Title (tony-s-random.pdf)
  /Creator (Cheatography)
  /Author (aparrill)
  /Subject (Tony's Random 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}{0C417D}
\definecolor{LightBackground}{HTML}{F7F9FA}
\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{Tony's Random Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{aparrill} via \textcolor{DarkBackground}{\uline{cheatography.com/13455/cs/1435/}}}
\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}aparrill \\
  \uline{cheatography.com/aparrill} \\
  \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 November, 2021.\\
   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*}{3}

\begin{tabularx}{5.377cm}{x{1.32733 cm} x{0.96117 cm} x{2.2885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{Bash Binary Operators}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Arithmetic}} & {\bf{String}} & {\bf{Meaning}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
-eq & == & equal to \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
-ne & != & not equal to \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
-lt & \textbackslash{}\textless{} & less than \tn 
% Row Count 5 (+ 1)
% Row 4
\SetRowColor{LightBackground}
-le &  & less than or equal to \tn 
% Row Count 7 (+ 2)
% Row 5
\SetRowColor{white}
-gt & \textbackslash{}\textgreater{} & greater than \tn 
% Row Count 8 (+ 1)
% Row 6
\SetRowColor{LightBackground}
-ge &  & greater than or equal to \tn 
% Row Count 10 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Unwrap LDIF Output}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{sed 'N;s/\textbackslash{}n //;P;D;' {\emph{filename.ldif}}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{perl -p -0040 -e 's/\textbackslash{}n //' {\emph{filename.ldif}}} \tn 
% Row Count 2 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.09848 cm} x{2.15119 cm} x{1.32733 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{AWS Accounts}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Account\#}} & {\bf{Root Account}} & {\bf{Purpose}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
x1735 & aws@aha.org & Security \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
x1319 & \seqsplit{aws-billing@aha.org} & Billing \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
x6872 & N/A & \seqsplit{Cloudticity} \tn 
% Row Count 6 (+ 1)
% Row 4
\SetRowColor{LightBackground}
x7464 & N/A & \seqsplit{DemandTrans} \tn 
% Row Count 7 (+ 1)
% Row 5
\SetRowColor{white}
x1123 & dzamudio@aha.org & Legacy Intranet \tn 
% Row Count 9 (+ 2)
% Row 6
\SetRowColor{LightBackground}
x9642 & hfdw@aha.org & CW Health Forum \tn 
% Row Count 11 (+ 2)
% Row 7
\SetRowColor{white}
x0548 & \seqsplit{hosting-services@aha}.org & ??? \tn 
% Row Count 13 (+ 2)
% Row 8
\SetRowColor{LightBackground}
x8811 & webdev@aha.org & EDP/CCA \tn 
% Row Count 14 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.87657 cm} x{1.46464 cm} x{1.23579 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{EDP/CCA Regions}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Environment}} & {\bf{IP Range}} & {\bf{Region}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
Development & \seqsplit{10.51.0.0/16} & Ohio \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
Staging & \seqsplit{10.50.0.0/16} & Virginia \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
Production & \seqsplit{10.52.0.0/16} & Oregon \tn 
% Row Count 4 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{p{0.94563 cm} x{4.03137 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{LDAP Special Characters}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{,}} & comma \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
{\bf{+}} & plus sign \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
{\bf{"}} & double quotation mark \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
{\emph{**}} & backslash \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
{\bf{\textless{}}} & less than \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
{\bf{\textgreater{}}} & greater than \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
{\bf{;}} & semicolon \tn 
% Row Count 7 (+ 1)
% Row 7
\SetRowColor{white}
{\bf{=}} & equals sign \tn 
% Row Count 8 (+ 1)
% Row 8
\SetRowColor{LightBackground}
{\bf{\#}} & octothorpe \tn 
% Row Count 9 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{0.89586 cm} x{4.08114 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Bash Variables}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{\$0}} & filename of script \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
{\bf{\$1}} & positional parameter \#1 \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
{\bf{\$2-\$9}} & positional parameters \#2 - \#9 \tn 
% Row Count 4 (+ 2)
% Row 3
\SetRowColor{white}
{\bf{\$\{10\}}} & positional parameter \#10 \tn 
% Row Count 6 (+ 2)
% Row 4
\SetRowColor{LightBackground}
{\bf{\$\#}} & number of positional parameters \tn 
% Row Count 7 (+ 1)
% Row 5
\SetRowColor{white}
{\bf{"\$*"}} & all the positional parameters (as a single word) * \tn 
% Row Count 9 (+ 2)
% Row 6
\SetRowColor{LightBackground}
{\bf{"\$@"}} & all the positional parameters (as separate strings) \tn 
% Row Count 11 (+ 2)
% Row 7
\SetRowColor{white}
{\bf{\$\{\#*\}}} & number of positional parameters \tn 
% Row Count 13 (+ 2)
% Row 8
\SetRowColor{LightBackground}
{\bf{\$\{\#@\}}} & number of positional parameters \tn 
% Row Count 15 (+ 2)
% Row 9
\SetRowColor{white}
{\bf{\$?}} & return value \tn 
% Row Count 16 (+ 1)
% Row 10
\SetRowColor{LightBackground}
{\bf{\$\$}} & process id (pid) of script \tn 
% Row Count 17 (+ 1)
% Row 11
\SetRowColor{white}
{\bf{\$-}} & flags passed to script (using set) \tn 
% Row Count 19 (+ 2)
% Row 12
\SetRowColor{LightBackground}
{\bf{\$\_}} & last argument of previous command \tn 
% Row Count 21 (+ 2)
% Row 13
\SetRowColor{white}
{\bf{\$!}} & process id (pid) of last job run in background \tn 
% Row Count 23 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.43873 cm} x{2.53827 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Outbound Metra Trains}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Depart Chicago}} & {\bf{Arrive Palatine}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
3:45 & 4:31 \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
4:05 & 5:08 \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
4:39 & 5:31 \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
4:48 & 5:42 \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
4:57 & 5:39 \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
5:16 & 5:55 \tn 
% Row Count 7 (+ 1)
% Row 7
\SetRowColor{white}
5:23 & 6:26 \tn 
% Row Count 8 (+ 1)
% Row 8
\SetRowColor{LightBackground}
5:33 & 6:20 \tn 
% Row Count 9 (+ 1)
% Row 9
\SetRowColor{white}
5:47 & 6:50 \tn 
% Row Count 10 (+ 1)
% Row 10
\SetRowColor{LightBackground}
6:01 * & 6:50 \tn 
% Row Count 11 (+ 1)
% Row 11
\SetRowColor{white}
6:25 & 7:09 \tn 
% Row Count 12 (+ 1)
% Row 12
\SetRowColor{LightBackground}
6:30 & 7:26 \tn 
% Row Count 13 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{* transfer at Arlington Park}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}