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%\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
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% Document Info
\author{hlhlhl (hlhlhl)}
\pdfinfo{
  /Title (configuring-and-managing-software-in-linux.pdf)
  /Creator (Cheatography)
  /Author (hlhlhl (hlhlhl))
  /Subject (Configuring and Managing Software in Linux 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}}
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\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Configuring and Managing Software in Linux Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{hlhlhl (hlhlhl)} via \textcolor{DarkBackground}{\uline{cheatography.com/218585/cs/48352/}}}
\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
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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}{x{1.64241 cm} x{3.33459 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Installation, Update \& Removal (Debian / Ubuntu)}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Purpose}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
`apt install` & Install package \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
`apt remove` & Remove package \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
`apt purge` & Remove package and configuration \tn 
% Row Count 5 (+ 2)
% Row 4
\SetRowColor{LightBackground}
`apt autoremove` & Remove unused dependencies \tn 
% Row Count 7 (+ 2)
% Row 5
\SetRowColor{white}
`apt update` & Update package index \tn 
% Row Count 8 (+ 1)
% Row 6
\SetRowColor{LightBackground}
`apt upgrade` & Update installed packages \tn 
% Row Count 9 (+ 1)
% Row 7
\SetRowColor{white}
`apt \seqsplit{full-upgrade`} & Upgrade including dependency changes \tn 
% Row Count 11 (+ 2)
% Row 8
\SetRowColor{LightBackground}
`dpkg -i` & Install local `.deb` package \tn 
% Row Count 13 (+ 2)
% Row 9
\SetRowColor{white}
`dpkg -r` & Remove package \tn 
% Row Count 14 (+ 1)
% Row 10
\SetRowColor{LightBackground}
`dpkg -l` & List installed packages \tn 
% Row Count 15 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.58804 cm} x{2.38896 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Repository Management (Debian)}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Purpose}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
`apt update` & Refresh repositories \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{`add-apt-repository`} & Add repository \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
\seqsplit{`/etc/apt/sources.list`} & Main repository file \tn 
% Row Count 6 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\seqsplit{`/etc/apt/sources.list.d/} & Additional repositories \tn 
% Row Count 8 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.53827 cm} x{2.43873 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Installation, Update \& Removal (RHEL)}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Purpose}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
`dnf install` & Install package \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
`dnf remove` & Remove package \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
`dnf update` & Update packages \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
`dnf upgrade` & Upgrade packages \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
`dnf search` & Search packages \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
`dnf info` & Package information \tn 
% Row Count 7 (+ 1)
% Row 7
\SetRowColor{white}
`dnf list installed` & Installed packages \tn 
% Row Count 8 (+ 1)
% Row 8
\SetRowColor{LightBackground}
`rpm -i` & Install RPM \tn 
% Row Count 9 (+ 1)
% Row 9
\SetRowColor{white}
`rpm -e` & Remove RPM \tn 
% Row Count 10 (+ 1)
% Row 10
\SetRowColor{LightBackground}
`rpm -q` & Query package \tn 
% Row Count 11 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.53827 cm} x{2.43873 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Repository Management (RHEL)}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Purpose}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
`dnf repolist` & List repositories \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
`dnf config-manager` & Manage repositories \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
`/etc/yum.repos.d/` & Repository files \tn 
% Row Count 4 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.68758 cm} x{2.28942 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Package Exclusions}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Purpose}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
`dnf update -{}-exclude={\emph{PKG}}` & Skip package update \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
`apt-mark hold {\emph{PKG}}` & Prevent package upgrades \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
`apt-mark unhold {\emph{PKG}}` & Allow upgrades again \tn 
% Row Count 7 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{PKG is a placeholder for an actual package name}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.43873 cm} x{2.53827 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Basic Configurations of Common Services}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Purpose}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
`systemctl start` & Start service \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
`systemctl stop` & Stop service \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
`systemctl restart` & Restart service \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
`systemctl reload` & Reload configuration \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
`systemctl enable` & Enable at boot \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
`systemctl disable` & Disable at boot \tn 
% Row Count 7 (+ 1)
% Row 7
\SetRowColor{white}
`systemctl status` & View service status \tn 
% Row Count 8 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.64241 cm} x{3.33459 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Sandboxed Applications}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Technology}} & {\bf{Description}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
Snap & Canonical package format \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
Flatpak & Desktop application packaging \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
AppImage & Portable application \tn 
% Row Count 6 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.9908 cm} x{2.9862 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Software Configuration}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Location}} & {\bf{Purpose}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
`/etc` & System configuration \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
`/etc/default` & Default service settings \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
\seqsplit{`/etc/sysconfig`} & RHEL configuration \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\seqsplit{`/usr/share/doc`} & Documentation \tn 
% Row Count 5 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.88666 cm} x{2.09034 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Alternatives}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Purpose}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
`update-alternatives -{}-config {\emph{NAME}}` & Select default program \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
`update-alternatives -{}-display {\emph{NAME}} & Show available alternatives \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
`alternatives -{}-config {\emph{NAME}}` & RHEL equivalent \tn 
% Row Count 7 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{NAME is a placeholder for actual package names}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}