\documentclass[10pt,a4paper]{article}

% Packages
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\usepackage{tabularx}           % Intelligent column widths
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\usepackage{colortbl}           % For coloured tables
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\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{gregcheater}
\pdfinfo{
  /Title (bash.pdf)
  /Creator (Cheatography)
  /Author (gregcheater)
  /Subject (bash Cheat Sheet)
}

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% Header and Footer
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\fancyhead{} % Set header to blank
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\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 Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{gregcheater} via \textcolor{DarkBackground}{\uline{cheatography.com/26582/cs/7469/}}}
\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}gregcheater \\
  \uline{cheatography.com/gregcheater} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 14th March, 2016.\\
   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}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{basic bash commands}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}pwd : print working directory} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}cd /path/to/dir : change direcotry} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}ls /dir/to/list : list directory content (default is .) \{\{bb\}\}} \tn 
% Row Count 4 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~-1 : display the content on one column} \tn 
% Row Count 6 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~-l : display the content with long listing format} \tn 
% Row Count 8 (+ 2)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~-a : display the content of the directory (including hidden files)} \tn 
% Row Count 10 (+ 2)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~-R : Display the content of the directory and the content of subdirectories\{\{bb\}\}} \tn 
% Row Count 13 (+ 3)
% Row 7
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}mv /path/to/file /path/where/to/move : move or rename a file or a directory} \tn 
% Row Count 15 (+ 2)
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}cp /path/to/file /path/where/to/copy : copy a file \{\{bb\}\}} \tn 
% Row Count 17 (+ 2)
% Row 9
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~-r : copy recursively (used to copy directory) \{\{bb\}\}} \tn 
% Row Count 19 (+ 2)
% Row 10
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}rm /path/to/file : remove a file \{\{bb\}\}} \tn 
% Row Count 21 (+ 2)
% Row 11
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~-r : remove recursively (used to remove directories)} \tn 
% Row Count 23 (+ 2)
% Row 12
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~-f : force remove \{\{bb\}\}} \tn 
% Row Count 24 (+ 1)
% Row 13
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}mkdir /path/dirName : create an empty directory} \tn 
% Row Count 26 (+ 2)
% Row 14
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}rmdir /path/to/dir : remove a directory (works only if the direcotry is empty)} \tn 
% Row Count 28 (+ 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}{bash redirections}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}command \textgreater{} file : redirect stdout to file. (creates the file if it doesn't exist and overwrite it if it does exist)} \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}command \textgreater{}\textgreater{} file : redirect stdout to file. (creates the file if it doesn't exist and append to the end it if it does exist)} \tn 
% Row Count 6 (+ 3)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}command 2\textgreater{} file : redirect stderr to file (creates the file if it doesn't exist and overwrite it if it does exist)} \tn 
% Row Count 9 (+ 3)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}command 2\textgreater{}\textgreater{} file : redirect stdout to file. (creates the file if it doesn't exist and append to the end it if it does exist)} \tn 
% Row Count 12 (+ 3)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}command \&\textgreater{} file : redirect stdout and stderr to file (creates the file if it doesn't exist and overwrite it if it does exist)} \tn 
% Row Count 15 (+ 3)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}command \&\textgreater{}\textgreater{} file : redirect stdout and stderr to file. (creates the file if it doesn't exist and append to the end it if it does exist)} \tn 
% Row Count 18 (+ 3)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}command \textless{} file : redirect stdin to file.} \tn 
% Row Count 20 (+ 2)
% Row 7
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\} command1 | command 2 : uses the output of command1 as the input of command2} \tn 
% Row Count 22 (+ 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}{file globbing regex}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\textbackslash{} : escape character. It deletes the signification of a special character} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}? : Any character, once.} \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}* : Any character, 0, 1 or many time.} \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}{[}...{]} : Any character that is in the class. ex: {[}abc{]}, {[}a-z{]}, {[}0-9{]}} \tn 
% Row Count 7 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}{[}\textasciicircum{}...{]}: Any character that is not in the class. ex: {[}\textasciicircum{}abc{]}, {[}\textasciicircum{}a-z{]}, {[}\textasciicircum{}0-9{]}} \tn 
% Row Count 9 (+ 2)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\{s1, s2, sN\} : match s1 or s2 or sN} \tn 
% Row Count 10 (+ 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}{control structure (if)}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{if \textless{}expression\textgreater{}; then \newline     {[}statements{]} \newline elif \textless{}expression\textgreater{}; then \newline     {[}statements{]} \newline else \newline     {[}statements{]} \newline fi} \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}{control structure (while)}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{while \textless{}expression\textgreater{}; do \newline     {[}statements{]} \newline done} \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}{control structure (for)}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{for var in \textless{}expression\textgreater{}; do \newline     echo \$var \newline     {[}statements{]} \newline done} \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}{control structure (case)}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\emph{\# patterns are file globing regex}} \newline case \textless{}expression\textgreater{} in \newline     pattern1) \newline         {[}statements{]} \newline         ;; \newline     pattern2) \newline         {[}statements{]} \newline         ;; \newline     *) \newline         {[}statements{]} \newline         ;; \newline esac} \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}{function definition}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{function functionName \{ \newline     {[}statements{]} \newline     {[}return X{]} \newline \}} \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}{conditional expressions}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\&\& : logical and operator} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}|| : logical or operator\{\{bb\}\}} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}{[}{[} string {]}{]} : return 0 if string is not empty} \tn 
% Row Count 4 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}{[}{[} -z string {]}{]} : return 0 if the string is empty} \tn 
% Row Count 6 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}{[}{[} string1 == string2 {]}{]} : return 0 if the string are equivalent} \tn 
% Row Count 8 (+ 2)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}{[}{[} string1 != string2 {]}{]} : return 0 if the string are not equivalent} \tn 
% Row Count 10 (+ 2)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}{[}{[} string =\textasciitilde{} pattern {]}{]} : return 0 if the string matches the pattern (extended regex)\{\{bb\}\}} \tn 
% Row Count 13 (+ 3)
% Row 7
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}{[}{[} -e file {]}{]} : return 0 if the file exists} \tn 
% Row Count 15 (+ 2)
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}{[}{[} -d file {]}{]} : return 0 if file is a directory} \tn 
% Row Count 17 (+ 2)
% Row 9
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}{[}{[} -f file {]}{]} : return 0 if file is a file} \tn 
% Row Count 19 (+ 2)
% Row 10
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}{[}{[} -x file {]}{]} : return 0 if file is executable} \tn 
% Row Count 21 (+ 2)
% Row 11
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}{[}{[} \$n1 -eq \$n2 {]}{]} : return 0 if \$n1 == \$n2} \tn 
% Row Count 23 (+ 2)
% Row 12
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}{[}{[} \$n1 -lt \$n2 {]}{]} : return 0 if \$n1 \textless{} \$n2} \tn 
% Row Count 25 (+ 2)
% Row 13
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}{[}{[} \$n1 -gt \$n2 {]}{]} : return 0 if \$n1 \textgreater{} \$n2} \tn 
% Row Count 27 (+ 2)
% Row 14
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}{[}{[} \$n1 -ge \$n2 {]}{]} : return 0 if \$n1 \textgreater{}= \$n2} \tn 
% Row Count 29 (+ 2)
% Row 15
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}{[}{[} \$n1 -le \$n2 {]}{]} : return 0 if \$n1 \textless{}= \$n2} \tn 
% Row Count 31 (+ 2)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{conditional expressions (cont)}}  \tn
% Row 16
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}{[}{[} \$n1 -ne \$n2 {]}{]} : return 0 if \$n1 != \$n2} \tn 
% Row Count 2 (+ 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}{more basic bash commands}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}passwd : change your password} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}history : consult the history of your command} \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}jobs : list of your pending proccesses} \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}cat file1 file2 ... : concatenate files and print to stdout} \tn 
% Row Count 7 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}more / less file1 file2 .. : diplsay a file page by page on stdout} \tn 
% Row Count 9 (+ 2)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}tail / head number : display the "number" first or last line of a file on stdout} \tn 
% Row Count 11 (+ 2)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}touch file1 file2 ... : change the modification date of the files} \tn 
% Row Count 13 (+ 2)
% Row 7
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}chmod : change the privileges of a file / directory} \tn 
% Row Count 15 (+ 2)
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}echo "text" : display a line of text to stdout} \tn 
% Row Count 17 (+ 2)
% Row 9
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}sort file1 file2 ... : sort the file (combine files if many are specified) and print the result to stdout (files aren't impacted) \{\{bb\}\}} \tn 
% Row Count 21 (+ 4)
% Row 10
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~-r : sort in reverse order} \tn 
% Row Count 22 (+ 1)
% Row 11
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~-n : numerical sort} \tn 
% Row Count 23 (+ 1)
% Row 12
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~-u : delete duplicated lines \{\{bb\}\}} \tn 
% Row Count 25 (+ 2)
% Row 13
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}wc file1 file2 ... : print to stdout the number of characters, words and lines of files \{\{bb\}\}} \tn 
% Row Count 28 (+ 3)
% Row 14
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~-l : number of lines only} \tn 
% Row Count 29 (+ 1)
% Row 15
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~-w : number of words only} \tn 
% Row Count 30 (+ 1)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{more basic bash commands (cont)}}  \tn
% Row 16
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~-w : number of characters only\{\{bb\}\}} \tn 
% Row Count 2 (+ 2)
% Row 17
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}diff file1 file1 : compare file1 and file 2 for differences \{\{bb\}\}} \tn 
% Row Count 4 (+ 2)
% Row 18
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~-i : ignore the character case} \tn 
% Row Count 6 (+ 2)
% Row 19
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~-B : ignore empty lines} \tn 
% Row Count 7 (+ 1)
% Row 20
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~-w : ignore whitespaces} \tn 
% Row Count 8 (+ 1)
% Row 21
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~-c : add context to the output (good for readability)\{\{bb\}\}} \tn 
% Row Count 10 (+ 2)
% Row 22
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}which commandName : print the path of a command} \tn 
% Row Count 12 (+ 2)
% Row 23
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}pushd / popd /path/to/dir : change directory using the directory stack} \tn 
% Row Count 14 (+ 2)
% Row 24
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}dirs : print the directory stack} \tn 
% Row Count 15 (+ 1)
% Row 25
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}find /path/to/dir -name pattern : find every files and directory that have a name that matches "pattern" in the directory specified and its subdirectories} \tn 
% Row Count 19 (+ 4)
% Row 26
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}man commandName : Display the manual for command commandName} \tn 
% Row Count 21 (+ 2)
% Row 27
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}sudo command : run the command as superuser} \tn 
% Row Count 23 (+ 2)
% Row 28
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}command1 | xargs -i command2 : uses the output of the command1 as the input of the command2. output will be accessible via \{\} in command2} \tn 
% Row Count 27 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{grep (simple regex)}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}grep "pattern" file1 file2 ... : print the lines that matched the pattern \{\{bb\}\}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~-v : print lines that didn't match the pattern} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~-i : ignore the character case} \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~-l : print the name of the files that have at least one match} \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~-o : print only the piece of line that matched the pattern} \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~-E : uses the extended regex} \tn 
% Row Count 12 (+ 2)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~-q : quiet. returns 0 in \$? if at least one line has been matched. 1 if no line matched} \tn 
% Row Count 15 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{variables}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}VAR=VARVALUE : create a variable VAR. the variable can be accessed like so: \$VAR or \$\{VAR\}} \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}VAR="\$VAR2" : \$VAR will contains the value of \$VAR2} \tn 
% Row Count 5 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}VAR='\$VAR2' : \$VAR will contains \$VAR2} \tn 
% Row Count 7 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}VAR=\$(command) : \$VAR will contains the output of the command} \tn 
% Row Count 9 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}(( VAR = \$VAR + 1 )): the double parentheses must be used when doing arithmetics} \tn 
% Row Count 11 (+ 2)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\$\{VAR\#pattern\} : return a substring of VAR where the smallest string (starting from the beginning) matching "pattern" will be cut} \tn 
% Row Count 14 (+ 3)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\$\{VAR\#\#pattern\} : return a substring of VAR where the longest string (starting from the beginning) matching "pattern" will be cut} \tn 
% Row Count 17 (+ 3)
% Row 7
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\$\{VAR\%pattern\} : return a substring of VAR where the smallest string (starting from the end) matching "pattern" will be cut} \tn 
% Row Count 20 (+ 3)
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\$\{VAR\%\%pattern\} : return a substring of VAR where the longest string (starting from the end) matching "pattern" will be cut} \tn 
% Row Count 23 (+ 3)
% Row 9
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\$? : the exit status of the last command / function executed. usually 0 when everything went right.} \tn 
% Row Count 26 (+ 3)
% Row 10
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\$\# : the number of args passed to the script / function} \tn 
% Row Count 28 (+ 2)
% Row 11
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\$0 : the name of the script} \tn 
% Row Count 29 (+ 1)
% Row 12
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\$n : the nth argument passed to the script / function} \tn 
% Row Count 31 (+ 2)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{variables (cont)}}  \tn
% Row 13
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\$@ : the list of all the argument passde to the script / function} \tn 
% Row Count 2 (+ 2)
% Row 14
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}Arrays\{\{bb\}\}} \tn 
% Row Count 3 (+ 1)
% Row 15
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~myArray=(value1 value2 value3): declare an array} \tn 
% Row Count 5 (+ 2)
% Row 16
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~declare -a myArray=(value1 value2 value3): declare an array} \tn 
% Row Count 7 (+ 2)
% Row 17
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~\$\{myArray{[}index{]}\} : access an element (index starts at 0)} \tn 
% Row Count 9 (+ 2)
% Row 18
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~myArray{[}index{]}= : add or modify the element at index} \tn 
% Row Count 11 (+ 2)
% Row 19
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~\$\{\#myArray{[}*{]}\} : return the lenght of the array} \tn 
% Row Count 13 (+ 2)
% Row 20
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~\$\{myArray{[}*{]}\}: all the elements of the array} \tn 
% Row Count 15 (+ 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}{simple regex}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\textbackslash{} : escape character. It deletes the signification of a special character} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}. : joker. It represents any characters} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}* : 0, 1 or many repetition of the last character / sequence of character} \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\textasciicircum{} : The beginning of the line} \tn 
% Row Count 7 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\$ : The end of the line} \tn 
% Row Count 8 (+ 1)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}{[}...{]} : Any character that is in the class. ex: {[}abc{]}, {[}a-z{]}, {[}0-9{]}} \tn 
% Row Count 10 (+ 2)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}{[}\textasciicircum{}...{]}: Any character that is not in the class. ex: {[}\textasciicircum{}abc{]}, {[}\textasciicircum{}a-z{]}, {[}\textasciicircum{}0-9{]}} \tn 
% Row Count 12 (+ 2)
% Row 7
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\textbackslash{}(...\textbackslash{}) : Capture the pattern. The pattern can then be accessed with \textbackslash{}1, \textbackslash{}2 ... \textbackslash{}n depending on the number of capture in the regex} \tn 
% Row Count 15 (+ 3)
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\textbackslash{}\{n\textbackslash{}\} : n repetitions of the last character / sequence of character} \tn 
% Row Count 17 (+ 2)
% Row 9
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\textbackslash{}\{n,\textbackslash{}\} : At least n repetitions of the last character / sequence of character} \tn 
% Row Count 19 (+ 2)
% Row 10
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\textbackslash{}\{n, m\textbackslash{}\} : Between n and m repetitions of the last character / sequence of character} \tn 
% Row Count 21 (+ 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}{extended regex}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\textbackslash{} : escape character. It deletes the signification of a special character} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}. : joker. It represents any characters} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}* : 0, 1 or many repetition of the last character / sequence of character} \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}+ : 1 or more repetition of the last character / sequence of character} \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}? : The last character / sequence of character can appear or not} \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\textasciicircum{} : The beginning of the line} \tn 
% Row Count 11 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\$ : The end of the line} \tn 
% Row Count 12 (+ 1)
% Row 7
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}{[}...{]} : Any character that is in the class. ex: {[}abc{]}, {[}a-z{]}, {[}0-9{]}} \tn 
% Row Count 14 (+ 2)
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}{[}\textasciicircum{}...{]}: Any character that is not in the class. ex: {[}\textasciicircum{}abc{]}, {[}\textasciicircum{}a-z{]}, {[}\textasciicircum{}0-9{]}} \tn 
% Row Count 16 (+ 2)
% Row 9
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}s1|s2 : Either s1 or s2 but not both} \tn 
% Row Count 18 (+ 2)
% Row 10
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}(...) : change the priority} \tn 
% Row Count 19 (+ 1)
% Row 11
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\{n\} : n repetitions of the last character / sequence of character} \tn 
% Row Count 21 (+ 2)
% Row 12
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\{n,\} : At least n repetitions of the last character / sequence of character} \tn 
% Row Count 23 (+ 2)
% Row 13
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}\{n, m\} : Between n and m repetitions of the last character / sequence of character} \tn 
% Row Count 25 (+ 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}{sed (simple regex)}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}sed 'sed script' file : execute the script on every line of "file" \{\{bb\}\}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\seqsplit{~~~~s/pattern/newString/gI} : Substitute the piece of the line that matches "pattern" by "newString". g (optional): global, I (optional): ignore case} \tn 
% Row Count 6 (+ 4)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~/pattern/d : delete the line if "pattern" is matched} \tn 
% Row Count 8 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~/pattern/p : print the line if "pattern" is matched} \tn 
% Row Count 10 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~/pattern1/,/pattern2/ : print every lines between the first line that matches "pattern1" to the first line that matches "pattern2"} \tn 
% Row Count 14 (+ 4)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~-i.ext : Modifications done "in-place". A backup file will be created with .ext extension (it is optional)} \tn 
% Row Count 17 (+ 3)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~-n : print only the lines that matched the pattern} \tn 
% Row Count 19 (+ 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}{awk (extended regex)}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}awk -Fc 'awk script' file1 file2 ...   (where "c" is the delimiter)} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\{\{fa-square-o\}\}typical awk script: 'BEGIN \{statements\} /pattern/ \{script statements\} END \{statements\}'\{\{bb\}\}} \tn 
% Row Count 5 (+ 3)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~BEGIN \{\} : Will be executed once at the start} \tn 
% Row Count 7 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~END \{\} : Will be executed once at the end} \tn 
% Row Count 9 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~/pattern/ : only lines that matched the pattern will be processed} \tn 
% Row Count 11 (+ 2)
% Row 5
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~/pattern1/,/pattern2/ : every line from the first line that matches pattern1 to the first line that matches pattern2 will be processed} \tn 
% Row Count 15 (+ 4)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~\{script statements\} : core of the script} \tn 
% Row Count 17 (+ 2)
% Row 7
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~~~printf: C-style formatter (man printf)} \tn 
% Row Count 19 (+ 2)
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~~~~~\$n : the nth field of the line} \tn 
% Row Count 21 (+ 2)
% Row 9
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~~~~~\$0 : the entire line} \tn 
% Row Count 23 (+ 2)
% Row 10
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~~~~~NR : the record number} \tn 
% Row Count 25 (+ 2)
% Row 11
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~~~~~NF : the number of fields in the record} \tn 
% Row Count 27 (+ 2)
% Row 12
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{~~~~~~~~FS: The field separator (the delimiter)} \tn 
% Row Count 29 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}