\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{hlhlhl (hlhlhl)}
\pdfinfo{
  /Title (local-account-management.pdf)
  /Creator (Cheatography)
  /Author (hlhlhl (hlhlhl))
  /Subject (Local Account Management Cheat Sheet)
}

% Lengths and widths
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\addtolength{\voffset}{-2cm}
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\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
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\definecolor{FootBackground}{HTML}{666666}
\definecolor{TextColor}{HTML}{333333}
\definecolor{DarkBackground}{HTML}{A3A3A3}
\definecolor{LightBackground}{HTML}{F3F3F3}
\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{Local Account Management Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{hlhlhl (hlhlhl)} via \textcolor{DarkBackground}{\uline{cheatography.com/218585/cs/48350/}}}
\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}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}
  \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{1.09494 cm} x{3.88206 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{User Account Commands}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Purpose}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\seqsplit{`useradd`} & Create a new user \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{`adduser`} & Interactive user creation (Debian/Ubuntu) \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
\seqsplit{`usermod`} & Modify a user account \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\seqsplit{`userdel`} & Delete a user \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
\seqsplit{`passwd`} & Set or change a user's password \tn 
% Row Count 11 (+ 1)
% Row 6
\SetRowColor{LightBackground}
`chage` & Manage password aging and expiration \tn 
% Row Count 13 (+ 2)
% Row 7
\SetRowColor{white}
`id` & Display user and group IDs \tn 
% Row Count 14 (+ 1)
% Row 8
\SetRowColor{LightBackground}
\seqsplit{`whoami`} & Display current username \tn 
% Row Count 15 (+ 1)
% Row 9
\SetRowColor{white}
\seqsplit{`finger`} & Display user information (if installed) \tn 
% Row Count 17 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.39356 cm} x{3.58344 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{User Information}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Purpose}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
`id` & User and group IDs \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
`who` & Logged-in users \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
`w` & Logged-in users and activity \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
`last` & Login history \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
`lastlog` & Last login per user \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
`users` & Currently logged-in usernames \tn 
% Row Count 8 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.29402 cm} x{3.68298 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{User Switch}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Purpose}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
`su` & Switch user \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
`sudo` & Execute command as another user \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
`sudo -i` & Start a root login shell \tn 
% Row Count 6 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.09494 cm} x{3.88206 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Group Management}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Purpose}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\seqsplit{`groupadd`} & Create a group \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{`groupmod`} & Modify a group \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
\seqsplit{`groupdel`} & Delete a group \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\seqsplit{`gpasswd`} & Manage group memberships and passwords \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
\seqsplit{`groups`} & Display user's groups \tn 
% Row Count 11 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\seqsplit{`newgrp`} & Switch to another group \tn 
% Row Count 12 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.32733 cm} x{1.46464 cm} x{1.78503 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{Common User Account Attributes}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Attribute}} & {\bf{Description}} & {\bf{Managed By}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
Username & Login name & `useradd`, `usermod` \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
UID & User ID & `useradd`, `usermod` \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
Primary Group & Default group & `useradd`, `usermod` \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\seqsplit{Supplementary} Groups & Additional groups & `usermod -aG` \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
Home Directory & User's home folder & `useradd -d`, `usermod -d` \tn 
% Row Count 12 (+ 2)
% Row 6
\SetRowColor{LightBackground}
Login Shell & Default shell & `useradd -s`, `usermod -s` \tn 
% Row Count 14 (+ 2)
% Row 7
\SetRowColor{white}
Password & Password lifetime & `chage` \tn 
% Row Count 16 (+ 2)
% Row 8
\SetRowColor{LightBackground}
Account Expiration & Account expiry date & `chage`, `usermod -e` \tn 
% Row Count 18 (+ 2)
% Row 9
\SetRowColor{white}
Account Lock Status & Locked or unlocked & `passwd -l`, `usermod -L` \tn 
% Row Count 20 (+ 2)
% Row 10
\SetRowColor{LightBackground}
GECOS & Full name, phone, etc. & `chfn` \tn 
% Row Count 22 (+ 2)
\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}{Account Locking \& Expiration}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Purpose}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
`passwd -l` & Lock account password \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
`passwd -u` & Unlock account password \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
`usermod -L` & Lock user account \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
`chage` & Configure password aging \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
`chage -l` & View password aging \tn 
% Row Count 6 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.59264 cm} x{3.38436 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Home Directory \& Skeleton}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Command}} & {\bf{Purpose}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
`useradd -m` & Create home directory \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
`useradd -d` & Specify home directory \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
`useradd -k` & Specify skeleton directory \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
`useradd -s` & Specify login shell \tn 
% Row Count 5 (+ 1)
\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}{Important Files}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{File}} & {\bf{Purpose}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
`/etc/passwd` & User accounts \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
`/etc/shadow` & Password hashes \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
`/etc/group` & Groups \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
`/etc/gshadow` & Group passwords \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
`/etc/login.defs` & User account defaults \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\seqsplit{`/etc/default/useradd`} & Default `useradd` settings \tn 
% Row Count 8 (+ 2)
% Row 7
\SetRowColor{white}
`/etc/skel` & User profile template \tn 
% Row Count 9 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}