\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{TME520 (TME520)}
\pdfinfo{
  /Title (cron.pdf)
  /Creator (Cheatography)
  /Author (TME520 (TME520))
  /Subject (cron 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}{379FA3}
\definecolor{LightBackground}{HTML}{F2F9F9}
\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{cron Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{TME520 (TME520)} via \textcolor{DarkBackground}{\uline{cheatography.com/20978/cs/3876/}}}
\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}TME520 (TME520) \\
  \uline{cheatography.com/tme520} \\
        \uline{\seqsplit{tme520}.com}
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 12th April, 2015.\\
   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*}{2}

\begin{tabularx}{8.4cm}{x{3.12 cm} x{4.88 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Options}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{crontab -e}} & Modifier la {\emph{crontab}} de l'utilisateur courant. \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
{\bf{crontab -l}} & Afficher le contenu de la {\emph{crontab}} de l'utilisateur courant. \tn 
% Row Count 5 (+ 3)
% Row 2
\SetRowColor{LightBackground}
{\bf{crontab -r}} & Supprimer la {\emph{crontab}} de l'utilisateur courant. \tn 
% Row Count 7 (+ 2)
% Row 3
\SetRowColor{white}
{\bf{crontab -v}} & Afficher la date de la dernière modification apportée à la {\emph{crontab}} de l'utilisateur courant. \tn 
% Row Count 12 (+ 5)
% Row 4
\SetRowColor{LightBackground}
{\bf{crontab -u utilisateur}} & Agir sur la {\emph{crontab}} d'un autre utilisateur. \tn 
% Row Count 14 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.36 cm} x{4.64 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Exemples}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Minutes Heures JM Mois JS}} & {\bf{Tournera à...}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
30 0 1 1,6,12 * & 0h30 les premiers des mois de janvier, juin et décembre. \tn 
% Row Count 5 (+ 3)
% Row 2
\SetRowColor{LightBackground}
0 20 * 10 1-5 & 20h du lundi au vendredi durant tout le mois d'octobre. \tn 
% Row Count 8 (+ 3)
% Row 3
\SetRowColor{white}
15 0 1,10,15 * * & 0h15 les permier, dix et quinze de chaque mois. \tn 
% Row Count 11 (+ 3)
% Row 4
\SetRowColor{LightBackground}
5,10 0 10 * 1 & 0h05 et 0h10 tous les lundis ainsi que le 10 de chaque mois. \tn 
% Row Count 14 (+ 3)
% Row 5
\SetRowColor{white}
*/10 5-7 * 12 1-5 & Toutes les dix minutes de 5h à 7h, du lundi au vendredi en décembre. \tn 
% Row Count 18 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Organisation}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{-     -    -   -    -          commande \newline |     |     |   |    | \newline |     |     |   |    +-{}-{}-{}-- jour de la semaine (0 - 6) (dimanche=0) \newline |     |     |   +-{}-{}-{}-{}-{}-{}- mois (1 - 12) \newline |     |     +-{}-{}-{}-{}-{}-{}-{}-{}- jour dans le mois (1 - 31) \newline |     +-{}-{}-{}-{}-{}-{}-{}-{}-{}-- heure (0 - 23) \newline +-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}- minute (0 - 59)} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{p{1.04 cm} x{6.96 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Syntaxe}}  \tn
% Row 0
\SetRowColor{LightBackground}
* & Ce charactère indique à {\emph{cron}} d'utiliser toutes les valeurs valides pour le champs concerné (pour les minutes, toutes les minutes ; pour les heures, toutes les heures et ainsi de suite). \tn 
% Row Count 6 (+ 6)
% Row 1
\SetRowColor{white}
1,6,12 & Il est possible de spécifier plusieurs valeurs pour un seul champs. Elles doivent être séparées par une virgule. \tn 
% Row Count 10 (+ 4)
% Row 2
\SetRowColor{LightBackground}
1-5 & Il est également possible de spécifier une gamme de valeurs. Les deux bornes sont séparées par un tiret. \tn 
% Row Count 14 (+ 4)
% Row 3
\SetRowColor{white}
/2 & Indique à {\emph{cron}} de faire tourner la commande toutes les deux \{minutes,heures,jours\}. \tn 
% Row Count 17 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{Vous n'aurez pas manqué de remarquer qu'il est possible de spécifier le jour dans deux champs, respectivement "jour dans le mois" et "jour de la semaine". Ces données sont cumulatives : si les deux champs sont renseignés, la commande tournera pour chaque jour indiqué.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}