\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{dwagner309}
\pdfinfo{
  /Title (rhel.pdf)
  /Creator (Cheatography)
  /Author (dwagner309)
  /Subject (RHEL 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}{D41002}
\definecolor{LightBackground}{HTML}{FCF0EF}
\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{RHEL Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{dwagner309} via \textcolor{DarkBackground}{\uline{cheatography.com/20396/cs/3184/}}}
\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}dwagner309 \\
  \uline{cheatography.com/dwagner309} \\
  \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 11th 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{3.03597 cm} x{1.94103 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{CHMOD}}  \tn
% Row 0
\SetRowColor{LightBackground}
PERMISSION & EXAMPLE \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
User       Group       World & Command \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
rwx        rwx           rwx & chmod 777 filename \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
rwx	      rwx	      r-x & chmod 775 filename \tn 
% Row Count 7 (+ 2)
% Row 4
\SetRowColor{LightBackground}
rwx	      r-x	      r-x & chmod 755 filename \tn 
% Row Count 9 (+ 2)
% Row 5
\SetRowColor{white}
rw-	      rw-	      r-{}- & chmod 664 filename \tn 
% Row Count 11 (+ 2)
% Row 6
\SetRowColor{LightBackground}
rw-	      r-{}-	      r-{}- & chmod 644 filename \tn 
% Row Count 13 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{r = Readable       w = writable       x = executable       - = no permission \newline  \newline To get a combination, just add them up. For example, to get read, write, execute by owner, read, execute, by group, and execute by anybody, you would add 400+200+100+040+010+001 to give 751.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Process Management}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{ps \newline % Row Count 1 (+ 1)
{\emph{Show snapshot of processes}} \newline % Row Count 2 (+ 1)
top \newline % Row Count 3 (+ 1)
{\emph{Show real time processes}} \newline % Row Count 4 (+ 1)
kill pid \newline % Row Count 5 (+ 1)
{\emph{Kill process with id pid}} \newline % Row Count 6 (+ 1)
pkill name \newline % Row Count 7 (+ 1)
{\emph{Kill process with name name}} \newline % Row Count 8 (+ 1)
killall name \newline % Row Count 9 (+ 1)
{\emph{Kill all processes with names beginning name}}% Row Count 10 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{0.8354 cm} x{1.16956 cm} x{0.8354 cm} x{1.33664 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{5.377cm}}{\bf\textcolor{white}{File Operations}}  \tn
% Row 0
\SetRowColor{LightBackground}
\{\{nobreak\}\}touch file1 & \{\{nobreak\}\}{\emph{Create file1}} & \{\{nobreak\}\}mv file1 file2 & \{\{nobreak\}\}{\emph{Move file1 to file2}} \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
\{\{nobreak\}\}cat file1 file2 & \{\{nobreak\}\}{\emph{Concat-enate files}} & \{\{nobreak\}\}rm file1 & \{\{nobreak\}\}*Delete file1 \tn 
% Row Count 8 (+ 4)
% Row 2
\SetRowColor{LightBackground}
\{\{nobreak\}\}less file1 & \{\{nobreak\}\}{\emph{View and paginate file1}} & \{\{nobreak\}\}head file1 & \{\{nobreak\}\}{\emph{Show first 10 lines of file1}} \tn 
% Row Count 12 (+ 4)
% Row 3
\SetRowColor{white}
\{\{nobreak\}\}file file1 & \{\{nobreak\}\}{\emph{Get type of file1}} & \{\{nobreak\}\}tail file1 & \{\{nobreak\}\}{\emph{Show last 10 lines of file1}} \tn 
% Row Count 16 (+ 4)
% Row 4
\SetRowColor{LightBackground}
\{\{nobreak\}\}cp file1 file2 & \{\{nobreak\}\}{\emph{Copy file1 to file2}} & \{\{nobreak\}\}tail -f file1 & \{\{nobreak\}\}{\emph{Output of file1 as it changes}} \tn 
% Row Count 20 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}