\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{{[}deleted{]}}
\pdfinfo{
  /Title (bash-basics.pdf)
  /Creator (Cheatography)
  /Author ({[}deleted{]})
  /Subject (Bash Basics Cheat Sheet)
}

% Lengths and widths
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\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
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\definecolor{FootBackground}{HTML}{666666}
\definecolor{TextColor}{HTML}{333333}
\definecolor{DarkBackground}{HTML}{B8B8B8}
\definecolor{LightBackground}{HTML}{F6F6F6}
\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{Bash Basics Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{{[}deleted{]}} via \textcolor{DarkBackground}{\uline{cheatography.com/25495/cs/6688/}}}
\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}{[}deleted{]} \\
  \uline{cheatography.com/deleted-25495} \\
  \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 13th May, 2016.\\
   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{1.29402 cm} x{3.68298 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Variable}}  \tn
% Row 0
\SetRowColor{LightBackground}
Variable & Meaning \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\$0 & Name of the current script \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\$1 - \$9 & Positional parameters \#1 - \#9 \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
\$\{10\} & Positional parameters \#10 \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\$\# & Number of positional parameters \tn 
% Row Count 6 (+ 2)
% Row 5
\SetRowColor{white}
"\$*" & All the positional parameters as one single word \tn 
% Row Count 8 (+ 2)
% Row 6
\SetRowColor{LightBackground}
"\$@" & All the positional parameters as separated strings \tn 
% Row Count 10 (+ 2)
% Row 7
\SetRowColor{white}
\$\{\#*\} or \$\{\#@\} & Number of command line parameters passed to script \tn 
% Row Count 12 (+ 2)
% Row 8
\SetRowColor{LightBackground}
\$? & Return value \tn 
% Row Count 13 (+ 1)
% Row 9
\SetRowColor{white}
\$\$ & Process ID of the script \tn 
% Row Count 14 (+ 1)
% Row 10
\SetRowColor{LightBackground}
\$- & Flags passed to Script \tn 
% Row Count 15 (+ 1)
% Row 11
\SetRowColor{white}
\$\_ & Last argument of previous command \tn 
% Row Count 17 (+ 2)
% Row 12
\SetRowColor{LightBackground}
\$! & Process ID of Last Job in background \tn 
% Row Count 19 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.89126 cm} x{3.08574 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Miscellaneous Constructs}}  \tn
% Row 0
\SetRowColor{LightBackground}
Expression & Meaning \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
if {[} ... {]} then -{}-{}- fi & If {[} value {]} is true, then do -{}-{}- \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
if {[}{[} ... {]}{]} then -{}-{}- fi & If {[}{[} value {]}{]} is true, then do -{}-{}- (extended condition \tn 
% Row Count 6 (+ 3)
% Row 3
\SetRowColor{white}
while {[} ... {]} do -{}-{}- done & while {[} value {]} is true, do -{}-{}- \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
(( ... )) & Arithmetic operation \tn 
% Row Count 9 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{Be very careful not to forget the space in the brackets!}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.51041 cm} x{1.69349 cm} x{1.3731 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{Bash Operators}}  \tn
% Row 0
\SetRowColor{LightBackground}
Operator for Variables & Meaning & Operator for Strings \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 & Less than & \textbackslash{}\textless{} \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 & Greater than & \textbackslash{}\textgreater{} \tn 
% Row Count 8 (+ 1)
% Row 6
\SetRowColor{LightBackground}
-ge & Greater than or equal to &  \tn 
% Row Count 10 (+ 2)
% Row 7
\SetRowColor{white}
 & String is empty & -z \tn 
% Row Count 12 (+ 2)
% Row 8
\SetRowColor{LightBackground}
 & String is not empty & -n \tn 
% Row Count 14 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\SetRowColor{LightBackground}
\mymulticolumn{3}{x{5.377cm}}{/ Not needed if in {[}{[}double-bracket{]}{]}}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}---}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.23965 cm} x{2.73735 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Operators between ((double parentheses))}}  \tn
% Row 0
\SetRowColor{LightBackground}
Arithemetic Operator & Meaning \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\textgreater{} & Greater than \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\textgreater{}= & Greater than or equal to \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
\textless{} & Less than \tn 
% Row Count 6 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\textless{}= & Less than or equal to \tn 
% Row Count 7 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Generate a random number between 0 and 10}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{(( ( RANDOM \% 10 )  + 1 ))} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{0.84609 cm} x{4.13091 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{File Operator}}  \tn
% Row 0
\SetRowColor{LightBackground}
\seqsplit{Operator} & Meaning \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
-e & File Exists \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
-f & file is a regular file \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
-d & file is a directory \tn 
% Row Count 5 (+ 1)
% Row 4
\SetRowColor{LightBackground}
-h or -L & file is a symbolic link \tn 
% Row Count 7 (+ 2)
% Row 5
\SetRowColor{white}
-b & File is a block device \tn 
% Row Count 8 (+ 1)
% Row 6
\SetRowColor{LightBackground}
-N & File modified since it was last read \tn 
% Row Count 10 (+ 2)
% Row 7
\SetRowColor{white}
-O & You own the file \tn 
% Row Count 11 (+ 1)
% Row 8
\SetRowColor{LightBackground}
-G & Group ID of the file is the same as yours \tn 
% Row Count 13 (+ 2)
% Row 9
\SetRowColor{white}
! & Reverse the sense of the above tests \tn 
% Row Count 15 (+ 2)
% Row 10
\SetRowColor{LightBackground}
-s & Size of the file is not 0 \tn 
% Row Count 16 (+ 1)
% Row 11
\SetRowColor{white}
-r & File has read permission \tn 
% Row Count 17 (+ 1)
% Row 12
\SetRowColor{LightBackground}
-w & File has write permission \tn 
% Row Count 18 (+ 1)
% Row 13
\SetRowColor{white}
-x & File has execute permission \tn 
% Row Count 19 (+ 1)
% Row 14
\SetRowColor{LightBackground}
-nt & Is newer than \tn 
% Row Count 20 (+ 1)
% Row 15
\SetRowColor{white}
-ot & Is older than \tn 
% Row Count 21 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}