\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{matthias}
\pdfinfo{
  /Title (raspbian.pdf)
  /Creator (Cheatography)
  /Author (matthias)
  /Subject (Raspbian 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}{A3A3A3}
\definecolor{LightBackground}{HTML}{F3F3F3}
\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{Raspbian Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{matthias} via \textcolor{DarkBackground}{\uline{cheatography.com/33175/cs/13347/}}}
\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}matthias \\
  \uline{cheatography.com/matthias} \\
  \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 31st October, 2017.\\
   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{2.04057 cm} x{2.93643 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Main}}  \tn
% Row 0
\SetRowColor{LightBackground}
`watch -n {[}sec{]} {[}statement{]}` & Prints the output of statement every sec seconds \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
`nano {[}file{]}` & Edits file \tn 
% Row Count 4 (+ 1)
% Row 2
\SetRowColor{LightBackground}
`touch {[}file{]}` & Creates empty file \tn 
% Row Count 5 (+ 1)
% Row 3
\SetRowColor{white}
`lsmod` & Lists all loaded modules \tn 
% Row Count 7 (+ 2)
% Row 4
\SetRowColor{LightBackground}
`modinfo {[}module{]}` & Load infos of module \tn 
% Row Count 9 (+ 2)
% Row 5
\SetRowColor{white}
`dmesg` & Kernel-Log \tn 
% Row Count 10 (+ 1)
% Row 6
\SetRowColor{LightBackground}
`free` & Lists RAM usage \tn 
% Row Count 11 (+ 1)
% Row 7
\SetRowColor{white}
`htop` & Starts process manager \tn 
% Row Count 12 (+ 1)
% Row 8
\SetRowColor{LightBackground}
`uptime` & Runtime, system load \tn 
% Row Count 13 (+ 1)
% Row 9
\SetRowColor{white}
`uname -a` & print OS version \tn 
% Row Count 14 (+ 1)
% Row 10
\SetRowColor{LightBackground}
`top` & Actual system load (like htop) \tn 
% Row Count 16 (+ 2)
% Row 11
\SetRowColor{white}
`lscpu` & Lists CPU information \tn 
% Row Count 17 (+ 1)
% Row 12
\SetRowColor{LightBackground}
`lsblk` & Lists all block devices \tn 
% Row Count 18 (+ 1)
% Row 13
\SetRowColor{white}
`lsusb` & Lists all USB devices \tn 
% Row Count 19 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.4931 cm} x{3.4839 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{File System Operations}}  \tn
% Row 0
\SetRowColor{LightBackground}
`df -h` & Show disk space \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
`df -i` & Show free inodes \tn 
% Row Count 2 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.18988 cm} x{2.78712 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Package Managing (sudo apt-get ...)}}  \tn
% Row 0
\SetRowColor{LightBackground}
`update` & Sync soruces \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
`upgrade` & Execute updates \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
`dist-upgrade` & Execute updates with enhanced package conflict management \tn 
% Row Count 5 (+ 3)
% Row 3
\SetRowColor{white}
`install {[}package{]}` & Installs package \tn 
% Row Count 7 (+ 2)
% Row 4
\SetRowColor{LightBackground}
`install -{}-reinstall {[}package{]}` & Reinstalls package \tn 
% Row Count 9 (+ 2)
% Row 5
\SetRowColor{white}
`remove {[}package{]}` & Uninstalls package (excl. configs) \tn 
% Row Count 11 (+ 2)
% Row 6
\SetRowColor{LightBackground}
`purge {[}package{]}` & Uninstalls package (incl. configs) \tn 
% Row Count 13 (+ 2)
% Row 7
\SetRowColor{white}
`check` & Checks consistency \tn 
% Row Count 14 (+ 1)
% Row 8
\SetRowColor{LightBackground}
`clean` & Removes local package-sources \tn 
% Row Count 16 (+ 2)
% Row 9
\SetRowColor{white}
`autoremove` & Removes unused packages \tn 
% Row Count 18 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{Execute all with `sudo apt-get ...`}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Network operations}}  \tn
% Row 0
\SetRowColor{LightBackground}
`scp {[}file{]} {[}user{]}@{[}host{]}:{[}destination{]}` & Copying files or folders via SSH (-r for recursive) \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
`ip addr` & Lists all local IP adrresses \tn 
% Row Count 5 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\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}{File operations}}  \tn
% Row 0
\SetRowColor{LightBackground}
`find {[}path{]} -name {[}file{]}` & Search for filename in path \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
`less {[}file{]}` & Shows content of file \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
`tail -n {[}N{]} {[}file{]}` & Outputs the last N lines of file \tn 
% Row Count 5 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.34379 cm} x{3.63321 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Configuration (/boot/config.ini)}}  \tn
% Row 0
\SetRowColor{LightBackground}
\seqsplit{`ld\_rotate=2`} & Rotate Rpi LCD Display \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\seqsplit{`dtdebug=on`} & Write debug log (sudo vcdbg log msg) \tn 
% Row Count 4 (+ 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}{Security}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{Change default password with `passwd`. \newline % Row Count 1 (+ 1)
Change SSH default port in `/etc/ssh/sshd\_config`. \newline % Row Count 3 (+ 2)
`sudo apt-get install fail2ban` \newline % Row Count 4 (+ 1)
Configure fail2ban \seqsplit{(`/etc/fail2ban/jail.conf`):} \newline % Row Count 5 (+ 1)
`ignoreip = 127.0.0.1 \# local IP` \newline % Row Count 6 (+ 1)
`bantime = 3600 \# ban time in s` \newline % Row Count 7 (+ 1)
`maxretry = 5 \# ban after 5 retries`% Row Count 8 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}