\documentclass[10pt,a4paper]{article}

% Packages
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\usepackage{multicol}           % Allows multicols in tables
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\usepackage{hhline}             % Border under tables
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\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{hlhlhl (hlhlhl)}
\pdfinfo{
  /Title (managing-linux-using-systemd.pdf)
  /Creator (Cheatography)
  /Author (hlhlhl (hlhlhl))
  /Subject (Managing Linux using systemd Cheat Sheet)
}

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% This two commands together give roughly
% the right line height in the tables
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% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
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% 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}}
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\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Managing Linux using systemd Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{hlhlhl (hlhlhl)} via \textcolor{DarkBackground}{\uline{cheatography.com/218585/cs/48353/}}}
\end{tabulary}
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\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}hlhlhl (hlhlhl) \\
  \uline{cheatography.com/hlhlhl} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 5th August, 2026.\\
   Updated 5th August, 2026.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
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  \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}{p{0.68655 cm} x{1.00694 cm} x{2.88351 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{Systemd Units}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Unit}} & {\bf{Extension}} & {\bf{Purpose}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\seqsplit{Service} & \seqsplit{`.service`} & Background service/daemon \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{Target} & \seqsplit{`.target`} & Group of units (runlevel replacement) \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
\seqsplit{Socket} & \seqsplit{`.socket`} & Socket activation \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
Timer & \seqsplit{`.timer`} & Scheduled task (cron alternative) \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
Mount & \seqsplit{`.mount`} & Automatically mount filesystem \tn 
% Row Count 12 (+ 2)
% Row 6
\SetRowColor{LightBackground}
\seqsplit{Automount} & \seqsplit{`.automount`} & Hardware devices \tn 
% Row Count 14 (+ 2)
% Row 7
\SetRowColor{white}
\seqsplit{Device} & \seqsplit{`.device`} & Hardware devices \tn 
% Row Count 16 (+ 2)
% Row 8
\SetRowColor{LightBackground}
Path & `.path` & Monitor file/directory changes \tn 
% Row Count 18 (+ 2)
% Row 9
\SetRowColor{white}
Swap & `.swap` & Swap device \tn 
% Row Count 19 (+ 1)
% Row 10
\SetRowColor{LightBackground}
Scope & \seqsplit{`.scope`} & External processes \tn 
% Row Count 20 (+ 1)
% Row 11
\SetRowColor{white}
Slice & \seqsplit{`.slice`} & Resource grouping \tn 
% Row Count 21 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\SetRowColor{LightBackground}
\mymulticolumn{3}{x{5.377cm}}{`systemctl list-units` -\textgreater{} Running units \newline `systemctl list-unit-files` -\textgreater{} Installed unit files}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.28942 cm} x{2.68758 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Systemctl Utilities}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Purpose}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
`systemctl status` & View service status \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
`systemctl start` & Start service \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
`systemctl stop` & Stop service \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
`systemctl restart` & Restart service \tn 
% Row Count 6 (+ 2)
% Row 5
\SetRowColor{white}
`systemctl reload` & Reload configuration \tn 
% Row Count 7 (+ 1)
% Row 6
\SetRowColor{LightBackground}
`systemctl enable` & Start at boot \tn 
% Row Count 8 (+ 1)
% Row 7
\SetRowColor{white}
`systemctl is-enabled` & Check boot status \tn 
% Row Count 10 (+ 2)
% Row 8
\SetRowColor{LightBackground}
`systemctl mask` & Prevent service from starting \tn 
% Row Count 12 (+ 2)
% Row 9
\SetRowColor{white}
`systemctl unmask` & Remove mask \tn 
% Row Count 13 (+ 1)
% Row 10
\SetRowColor{LightBackground}
`systemctl daemon-reload` & Reload unit files \tn 
% Row Count 15 (+ 2)
% Row 11
\SetRowColor{white}
`systemctl isolate` & Switch target \tn 
% Row Count 17 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.63781 cm} x{2.33919 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{journalctl}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Purpose}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
`journalctl` & View logs \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
`journalctl -u sshd` & Logs for a service \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
`journalctl -xe` & Recent errors \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
`journalctl -f` & Follow logs live \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
`journalctl -b` & Current boot logs \tn 
% Row Count 6 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.19448 cm} x{3.78252 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Managing Unit States}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{State}} & {\bf{Meaning}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
Active & Currently running \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
Inactive & Not running \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
Enabled & Starts automatically at boot \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
Disabled & Does not start automatically \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
Masked & Cannot be started \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
Failed & Service encountered an error \tn 
% Row Count 7 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}