\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{roliu}
\pdfinfo{
  /Title (linux-commands-cheat-sheet.pdf)
  /Creator (Cheatography)
  /Author (roliu)
  /Subject (Linux Commands 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
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\newcommand{\tn}{\tabularnewline} % Required as custom column type in use

% Font and Colours
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\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{Linux Commands Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{roliu} via \textcolor{DarkBackground}{\uline{cheatography.com/133059/cs/27042/}}}
\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}roliu \\
  \uline{cheatography.com/roliu} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 11th March, 2021.\\
   Updated 11th March, 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*}{2}

\begin{tabularx}{8.4cm}{x{3.6 cm} x{4.4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{File Commands}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{ls}} & - list files in the directory \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
{\bf{ls -al}} & - list long formatted files with hidden files \tn 
% Row Count 5 (+ 3)
% Row 2
\SetRowColor{LightBackground}
{\bf{cd}} & - return to home directory \tn 
% Row Count 7 (+ 2)
% Row 3
\SetRowColor{white}
{\bf{pwd}} & - display current working directory \tn 
% Row Count 9 (+ 2)
% Row 4
\SetRowColor{LightBackground}
{\bf{touch file}} & - create or update file \tn 
% Row Count 11 (+ 2)
% Row 5
\SetRowColor{white}
{\bf{mkdir dir}} & - create a new directory dir \tn 
% Row Count 13 (+ 2)
% Row 6
\SetRowColor{LightBackground}
{\bf{rm file}} & - remove file \tn 
% Row Count 14 (+ 1)
% Row 7
\SetRowColor{white}
{\bf{nano file}} & - edit the file using Nano's editor \tn 
% Row Count 16 (+ 2)
% Row 8
\SetRowColor{LightBackground}
\{\{nobreak\}\}{\bf{mv file1 file2/dir}} & - rename file1 to file2 or move file1 to dir \tn 
% Row Count 18 (+ 2)
% Row 9
\SetRowColor{white}
{\bf{rmdir dir}} & - remove empty directory dir \tn 
% Row Count 20 (+ 2)
% Row 10
\SetRowColor{LightBackground}
{\bf{rm -r dir}} & - remove directory dir \tn 
% Row Count 21 (+ 1)
% Row 11
\SetRowColor{white}
{\bf{cp file1 file2}} & - copy file1 to file2 \tn 
% Row Count 22 (+ 1)
% Row 12
\SetRowColor{LightBackground}
{\bf{cp -r dir1 dir2}} & - copy directory dir1 to dir2 and create dir2 if it does not exist \tn 
% Row Count 25 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.76 cm} x{4.24 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{File Permissions}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{chmod file}} & - change file permission \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
{\bf{chmod u-w file}} & - remove the writable permission from file to user \tn 
% Row Count 5 (+ 3)
% Row 2
\SetRowColor{LightBackground}
\{\{nobreak\}\}{\bf{chmod 777 file}} & - give read, write, execute permission to all \tn 
% Row Count 8 (+ 3)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{8.4cm}}{~~Operator for chmod} \tn 
% Row Count 9 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\{\{ac\}\}+ & add the specified modes \tn 
% Row Count 11 (+ 2)
% Row 5
\SetRowColor{white}
\{\{ac\}\}- & Remove the specified modes from file or dir \tn 
% Row Count 14 (+ 3)
% Row 6
\SetRowColor{LightBackground}
\{\{ac\}\}= & Set the specified modes \tn 
% Row Count 16 (+ 2)
% Row 7
\SetRowColor{white}
\{\{nobreak\}\}{\bf{chown user:group file}} & - change the ownership of file \tn 
% Row Count 18 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.52 cm} x{4.48 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Users and Groups}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{groupadd group}} & - add a new group \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
{\bf{useradd -g group nUser}} & - add a new user to group \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
{\bf{usermod -g group eUser}} & - add an existing user to group \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
{\bf{lid -g group}} & - list all the users in the group \tn 
% Row Count 8 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{All the above commands require superuser privileges.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.68 cm} x{4.32 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Network}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{ping host}} & - ping host \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
{\bf{wget file}} & - download file \tn 
% Row Count 2 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.28 cm} x{4.72 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{System Info}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{whoami}} & - display the login username \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
{\bf{uname -a}} & - display all the system information \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
{\bf{whereis app}} & - show possible locations of app \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
{\bf{which app}} & - shows the full path of the app \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
{\bf{df -h}} & - show file system disk space usage with human-readable storage size \tn 
% Row Count 11 (+ 3)
% Row 5
\SetRowColor{white}
\{\{nobreak\}\}{\bf{du -d0 -h dir}} & - display the directory space usage without displaying subdirectories \tn 
% Row Count 14 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.96 cm} x{5.04 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Process Management}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{ps}} & - display current active processes \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
{\bf{top}} & - display all running processes \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
{\bf{kill pid}} & - kill a process by ID \tn 
% Row Count 5 (+ 1)
% Row 3
\SetRowColor{white}
{\bf{killall procname}} & - kill a process by a name \tn 
% Row Count 7 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Compression}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{tar -cvf file.tar files/dir}} & - create a tar file to archive the files/dir and display the progress in the terminal. \tn 
% Row Count 5 (+ 5)
% Row 1
\SetRowColor{white}
\{\{nobreak\}\}{\bf{tar -xzvf file.tar.gz -C dir}} & - extract a tar using Gzip to directory dir \tn 
% Row Count 8 (+ 3)
% Row 2
\SetRowColor{LightBackground}
{\bf{tar -czf file.gz file.tar}} & - compress the file.tar to file.gz using Gzip \tn 
% Row Count 11 (+ 3)
% Row 3
\SetRowColor{white}
{\bf{gzip file}} & - compress file and rename it to file.gz \tn 
% Row Count 13 (+ 2)
% Row 4
\SetRowColor{LightBackground}
{\bf{gzip -d file.gz}} & - decompress file.gz back to file \tn 
% Row Count 15 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.84 cm} x{4.16 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Searching}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{grep {\emph{pattern}} files}} & - search for pattern in files, * denotes all the files \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
{\bf{grep -r {\emph{pattern}} dir}} & - search for the pattern in dir \tn 
% Row Count 5 (+ 2)
% Row 2
\SetRowColor{LightBackground}
{\bf{grep -i {\emph{pattern}} file}} & - ignore the case and search for the pattern \tn 
% Row Count 8 (+ 3)
% Row 3
\SetRowColor{white}
\{\{nobreak\}\}{\bf{command | grep pattern}} & - search for the pattern in the output of command \tn 
% Row Count 11 (+ 3)
% Row 4
\SetRowColor{LightBackground}
{\bf{locate file}} & - find all instances of file by name \tn 
% Row Count 13 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{A {\emph{regular expression}} is used to describes a particular search {\emph{pattern}} .}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.8 cm} x{5.2 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Redirection}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{\textgreater{} file}} & - output operator to overwrite the file \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\{\{nobreak\}\}{\bf{\textgreater{}\textgreater{} file}} & - append operator to append the text at the end of the file \tn 
% Row Count 5 (+ 3)
% Row 2
\SetRowColor{LightBackground}
{\bf{|}} & - pipe operator to take the output from the preceding command to be the input of the following command \tn 
% Row Count 9 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}