\documentclass[10pt,a4paper]{article}

% Packages
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\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{nextnely}
\pdfinfo{
  /Title (red-hat.pdf)
  /Creator (Cheatography)
  /Author (nextnely)
  /Subject (Red Hat Cheat Sheet)
}

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% This two commands together give roughly
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% 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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\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{Red Hat Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{nextnely} via \textcolor{DarkBackground}{\uline{cheatography.com/71363/cs/18089/}}}
\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}nextnely \\
  \uline{cheatography.com/nextnely} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 19th December, 2018.\\
   Updated 19th December, 2018.\\
   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{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Services}}  \tn
% Row 0
\SetRowColor{LightBackground}
systemctl list-unit-files -at service & Lists enabled/disabled service unit files. \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
systemctl list-units -at service & Lists enabled/disabled running services. \tn 
% Row Count 5 (+ 2)
% Row 2
\SetRowColor{LightBackground}
systemctl list-units -t service -{}-state running & Shows active running services. \tn 
% Row Count 8 (+ 3)
% Row 3
\SetRowColor{white}
-t & Shows enabled service unit files. \tn 
% Row Count 10 (+ 2)
% Row 4
\SetRowColor{LightBackground}
-a & Shows both enabled and disabled service unit files. \tn 
% Row Count 13 (+ 3)
% Row 5
\SetRowColor{white}
systemctl mask {[}service name{]} & Prevents service from starting. \tn 
% Row Count 15 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.73735 cm} x{2.23965 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Cron}}  \tn
% Row 0
\SetRowColor{LightBackground}
/var/spool/cron/{[}user{]} & User cron jobs. \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
/etc/cron.d & System cron jobs. \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
{[}minute 0-59{]} {[}hour{]} {[}day of the month{]} {[}month of the year{]} {[}day of the week{]} {[}path of script{]} & Cron job time format. \tn 
% Row Count 7 (+ 5)
% Row 3
\SetRowColor{white}
crontab-generator.org & Crontab generator. \tn 
% Row Count 8 (+ 1)
% Row 4
\SetRowColor{LightBackground}
0 1 {\emph{ }} * & Runs job everyday at 1 a.m. \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
0 1 {\emph{ }} * {[}user{]} & Format for system wide cron jobs. \tn 
% Row Count 12 (+ 2)
% Row 6
\SetRowColor{LightBackground}
/etc/at.allow & Allow access to the AT services. \tn 
% Row Count 14 (+ 2)
% Row 7
\SetRowColor{white}
/etc/cron.allow & Allow access to cron services. \tn 
% Row Count 16 (+ 2)
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{/etc/at.deny} \tn 
% Row Count 17 (+ 1)
% Row 9
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{/etc/cron.deny} \tn 
% Row Count 18 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{An empty deny file means nobody is denied. \newline An empty allow file means nobody is allowed. \newline If both are missing nobody is allowed. \newline Root always has access.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.89126 cm} x{3.08574 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{RPM}}  \tn
% Row 0
\SetRowColor{LightBackground}
rpm -qa & Queries all installed packages. \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{rpm -qa | sort} \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
rpm -qi {[}package{]} & Shows information about the package. \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{rpm -qa Group="System Environment/Shells"} \tn 
% Row Count 6 (+ 1)
% Row 4
\SetRowColor{LightBackground}
rpm -{}-qa -last & Shows packages install sorted by date \tn 
% Row Count 8 (+ 2)
% Row 5
\SetRowColor{white}
rpm -ql yum & Queries for list of file paths. \tn 
% Row Count 10 (+ 2)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{rpm -qc yum} \tn 
% Row Count 11 (+ 1)
% Row 7
\SetRowColor{white}
rpm -qf {[}path to file{]} & Query file. \tn 
% Row Count 13 (+ 2)
% Row 8
\SetRowColor{LightBackground}
rpm -qdf {[}path to file{]} & Shows all documentation for specified command/file. \tn 
% Row Count 16 (+ 3)
% Row 9
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{rpm -q -{}-provide} \tn 
% Row Count 17 (+ 1)
% Row 10
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{rpm -q -{}-requires {[}file{]}} \tn 
% Row Count 18 (+ 1)
% Row 11
\SetRowColor{white}
rpm -q -{}-changelog {[}file{]} & Shows changes to package. \tn 
% Row Count 20 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.69218 cm} x{3.28482 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{SELinux}}  \tn
% Row 0
\SetRowColor{LightBackground}
Enforcing mode & Security policy is enforced. \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
Permissive mode & Security policy is observed and warnings are printed but policy is not enforced. \tn 
% Row Count 6 (+ 4)
% Row 2
\SetRowColor{LightBackground}
Disabled & Mandatory access control if turned off. \tn 
% Row Count 8 (+ 2)
% Row 3
\SetRowColor{white}
sestatus & Shows SELinux status. \tn 
% Row Count 9 (+ 1)
% Row 4
\SetRowColor{LightBackground}
set setenforce \textless{}mode\textgreater{} & Temporarily changes SELinux mode. \tn 
% Row Count 11 (+ 2)
% Row 5
\SetRowColor{white}
vi \seqsplit{/selinux/config} & SELinux config file. \tn 
% Row Count 13 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{p{0.84609 cm} x{4.13091 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Networking}}  \tn
% Row 0
\SetRowColor{LightBackground}
nmtui & graphical network editor \tn 
% Row Count 1 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.33919 cm} x{2.63781 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Logs}}  \tn
% Row 0
\SetRowColor{LightBackground}
less -N /etc/rsyslog.conf & View rsyslog configuration file with line numbering turned on. \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
cat /var/log/messages & Lists messages log. \tn 
% Row Count 5 (+ 2)
% Row 2
\SetRowColor{LightBackground}
grep -v 'systemd:' /var/log/messages & Lists everything that does not include systemd. \tn 
% Row Count 8 (+ 3)
% Row 3
\SetRowColor{white}
tail -f /var/log/messages & Follows log file. \tn 
% Row Count 10 (+ 2)
% Row 4
\SetRowColor{LightBackground}
/var/log/secure & Private authentication messages (logins) \tn 
% Row Count 12 (+ 2)
% Row 5
\SetRowColor{white}
/etc/cron.daily & Logrotate cron job. \tn 
% Row Count 13 (+ 1)
% Row 6
\SetRowColor{LightBackground}
\seqsplit{/etc/logrotate.conf} & Logrotate configuration file. \tn 
% Row Count 15 (+ 2)
% Row 7
\SetRowColor{white}
logger "message" & Writes message to messages log file. \tn 
% Row Count 17 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{yum}}  \tn
% Row 0
\SetRowColor{LightBackground}
yum -{}-showduplicates -list {[}pacakge name{]} & Shows versions of a package. \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
yum list installed & Lists all packages installed. \tn 
% Row Count 5 (+ 2)
% Row 2
\SetRowColor{LightBackground}
Bold & Update available in repository. \tn 
% Row Count 7 (+ 2)
% Row 3
\SetRowColor{white}
Bold and underline & Current kernel \tn 
% Row Count 8 (+ 1)
% Row 4
\SetRowColor{LightBackground}
Red & Package doesn't exist in repository. \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
Yellow & Newer package then in repository. \tn 
% Row Count 12 (+ 2)
% Row 6
\SetRowColor{LightBackground}
yum list updates & Lists updates for packages installed. \tn 
% Row Count 14 (+ 2)
% Row 7
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{yum list available} \tn 
% Row Count 15 (+ 1)
% Row 8
\SetRowColor{LightBackground}
yum info {[}package name{]} & Shows package info. \tn 
% Row Count 17 (+ 2)
% Row 9
\SetRowColor{white}
yum deplist {[}package name{]} & Shows dependencies for package. \tn 
% Row Count 19 (+ 2)
% Row 10
\SetRowColor{LightBackground}
yum search {[}package name{]} & Searches for package name. \tn 
% Row Count 21 (+ 2)
% Row 11
\SetRowColor{white}
yum reinstall {[}package name{]} & Reinstalled package. \tn 
% Row Count 23 (+ 2)
% Row 12
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{yum reinstall -{}-skip-broken {[}package name{]}} \tn 
% Row Count 24 (+ 1)
% Row 13
\SetRowColor{white}
yum remove {[}package name{]} & Removes package. \tn 
% Row Count 26 (+ 2)
% Row 14
\SetRowColor{LightBackground}
yum autoremove {[}package name{]} & Removes packages including dependencies. \tn 
% Row Count 28 (+ 2)
% Row 15
\SetRowColor{white}
yum package-cleanup & Shows unused packages. \tn 
% Row Count 30 (+ 2)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{yum (cont)}}  \tn
% Row 16
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{yum install yum-utils} \tn 
% Row Count 1 (+ 1)
% Row 17
\SetRowColor{white}
yum check-update & Checks for updates. \tn 
% Row Count 2 (+ 1)
% Row 18
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{yum list obsoletes} \tn 
% Row Count 3 (+ 1)
% Row 19
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{yum install yum-plugin-versionlock} \tn 
% Row Count 4 (+ 1)
% Row 20
\SetRowColor{LightBackground}
yum versionlock {[}package name{]} & Prevents package from updating. \tn 
% Row Count 6 (+ 2)
% Row 21
\SetRowColor{white}
yum versionlock & Lists version locked packages. \tn 
% Row Count 8 (+ 2)
% Row 22
\SetRowColor{LightBackground}
yum versionlock delete {[}output from yum versionlock{]} & Removes version lock from package. \tn 
% Row Count 11 (+ 3)
% Row 23
\SetRowColor{white}
yum update -{}-security & Only updates security packages. \tn 
% Row Count 13 (+ 2)
% Row 24
\SetRowColor{LightBackground}
yum update-minimal -{}-security & Install strictly security updates. Doesn't include bug fixes. \tn 
% Row Count 17 (+ 4)
% Row 25
\SetRowColor{white}
yum install yum-plugin changelog & View package change logs. \tn 
% Row Count 19 (+ 2)
% Row 26
\SetRowColor{LightBackground}
yum changelog updates & Gets all change logs for packages with updates. \tn 
% Row Count 22 (+ 3)
% Row 27
\SetRowColor{white}
yum changelog {[}package name{]} & View change log for specific package. \tn 
% Row Count 24 (+ 2)
% Row 28
\SetRowColor{LightBackground}
yum list installed kernel-* & Lists currently installed kernel. \tn 
% Row Count 26 (+ 2)
% Row 29
\SetRowColor{white}
ls -l /boot & Kernel directory. \tn 
% Row Count 27 (+ 1)
% Row 30
\SetRowColor{LightBackground}
uname -r & Shows running kernel. \tn 
% Row Count 29 (+ 2)
% Row 31
\SetRowColor{white}
yum list available kernel & Lists available kernel. \tn 
% Row Count 31 (+ 2)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{yum (cont)}}  \tn
% Row 32
\SetRowColor{LightBackground}
yum -y update kernel & Updates kernel. \tn 
% Row Count 1 (+ 1)
% Row 33
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{yum remove kernel} \tn 
% Row Count 2 (+ 1)
% Row 34
\SetRowColor{LightBackground}
grub2-set-default {[}kernel number{]} & Changes kernel. \tn 
% Row Count 4 (+ 2)
% Row 35
\SetRowColor{white}
ls \seqsplit{/lib/modules/\$(uname} -r)/kernel & Lists kernel module directory. \tn 
% Row Count 6 (+ 2)
% Row 36
\SetRowColor{LightBackground}
lsmod & Lists modules. \tn 
% Row Count 7 (+ 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}{Time}}  \tn
% Row 0
\SetRowColor{LightBackground}
timedatectl & Lists local time for current timezone. \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
timedatectl list-timezones | grep America & Filters timezones via grep. \tn 
% Row Count 5 (+ 3)
% Row 2
\SetRowColor{LightBackground}
timedatectl set-timezone {[}timezone{]} & Sets timezone. \tn 
% Row Count 7 (+ 2)
% Row 3
\SetRowColor{white}
timedatectl set-time 24:00:00 & Manually sets time. \tn 
% Row Count 9 (+ 2)
% Row 4
\SetRowColor{LightBackground}
timedatectl set-time 2018-12-30 & Manually sets date. \tn 
% Row Count 11 (+ 2)
% Row 5
\SetRowColor{white}
timedatectl set-ntp true & Enables NTP. \tn 
% Row Count 13 (+ 2)
% Row 6
\SetRowColor{LightBackground}
systemctl restart systemd-timedated & Restarts NTP service. \tn 
% Row Count 15 (+ 2)
% Row 7
\SetRowColor{white}
yum install ntp & Installs NTP client. \tn 
% Row Count 17 (+ 2)
% Row 8
\SetRowColor{LightBackground}
/etc/ntp.conf & NTP config file. \tn 
% Row Count 18 (+ 1)
% Row 9
\SetRowColor{white}
ntpdate -q \textless{}server address\textgreater{} & Checks NTP server address. \tn 
% Row Count 20 (+ 2)
% Row 10
\SetRowColor{LightBackground}
ntpdate \textless{}server address\textgreater{} & Sets NTP server. \tn 
% Row Count 22 (+ 2)
% Row 11
\SetRowColor{white}
systemctl enable ntpdate & Enables NTP synchronization. \tn 
% Row Count 24 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.94103 cm} x{3.03597 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Journal}}  \tn
% Row 0
\SetRowColor{LightBackground}
journalctl & Lists all journal entries. \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
journalctl /sbin/crond & Specifies journal. \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
journalctl -f & Tails journal. \tn 
% Row Count 5 (+ 1)
% Row 3
\SetRowColor{white}
mkdir \seqsplit{/var/log/journal} & Directory for persistent journals. \tn 
% Row Count 7 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.55618 cm} x{1.46464 cm} x{1.55618 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{File Access Control}}  \tn
% Row 0
\SetRowColor{LightBackground}
ls -l {[}file name{]} & Lists group owners. & The user-owner is the third column from the left. THe group-owner is the fourth column. \tn 
% Row Count 7 (+ 7)
% Row 1
\SetRowColor{white}
Read (r) & 4 &  \tn 
% Row Count 8 (+ 1)
% Row 2
\SetRowColor{LightBackground}
Write (w) & 2 &  \tn 
% Row Count 9 (+ 1)
% Row 3
\SetRowColor{white}
Execute (x) & 1 &  \tn 
% Row Count 10 (+ 1)
% Row 4
\SetRowColor{LightBackground}
-rw-rw-r-{}- & -{}-userowner-groupowner-other &  \tn 
% Row Count 13 (+ 3)
% Row 5
\SetRowColor{white}
chmod u=rwx,g=rx,o=  \textless{}file\textgreater{} & Symbolic permission format. &  \tn 
% Row Count 16 (+ 3)
% Row 6
\SetRowColor{LightBackground}
chmod u+rwx \textless{}file\textgreater{} & Adds permissions format. &  \tn 
% Row Count 18 (+ 2)
% Row 7
\SetRowColor{white}
chmod o-x \textless{}file\textgreater{} & Remove permissions format. &  \tn 
% Row Count 21 (+ 3)
% Row 8
\SetRowColor{LightBackground}
chmod a-x \textless{}file\textgreater{} & Removes execute from all positions. &  \tn 
% Row Count 24 (+ 3)
% Row 9
\SetRowColor{white}
-R & Recursively adds \seqsplit{permissions.} &  \tn 
% Row Count 27 (+ 3)
% Row 10
\SetRowColor{LightBackground}
umask & View umask. &  \tn 
% Row Count 28 (+ 1)
% Row 11
\SetRowColor{white}
umask -S & View umask in symbolic notation. &  \tn 
% Row Count 31 (+ 3)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{5.377cm}{x{1.55618 cm} x{1.46464 cm} x{1.55618 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{File Access Control (cont)}}  \tn
% Row 12
\SetRowColor{LightBackground}
775 & Default directory \seqsplit{permissions.} & rwxrwxrwx \tn 
% Row Count 3 (+ 3)
% Row 13
\SetRowColor{white}
755 & rwx-r-xr-x &  \tn 
% Row Count 4 (+ 1)
% Row 14
\SetRowColor{LightBackground}
664 & Default file \seqsplit{permissions.} (umask 002) & rw-rw-r-{}- \tn 
% Row Count 8 (+ 4)
% Row 15
\SetRowColor{white}
umask 022 & Changes umask. &  \tn 
% Row Count 10 (+ 2)
% Row 16
\SetRowColor{LightBackground}
umask 002 & rw-rw-r-{}- & Directories- rwx-r-xr-x, Files- rwxr-{}-r-{}- \tn 
% Row Count 14 (+ 4)
% Row 17
\SetRowColor{white}
vi \textasciitilde{}/bashrc & User umask startup file & add new umask to end of file. \tn 
% Row Count 17 (+ 3)
% Row 18
\SetRowColor{LightBackground}
vi \seqsplit{/etc/profile.d/unmash.sh} & System wide unmask. & if {[} "\$UID" -ge 1000{]} ;then \tn 
% Row Count 20 (+ 3)
% Row 19
\SetRowColor{white}
getfacl \textless{}file\textgreater{} & lists ACLs on file. & -t \tn 
% Row Count 22 (+ 2)
% Row 20
\SetRowColor{LightBackground}
setfacl -m user:\textless{}user\textgreater{}:\textless{}permissions\textgreater{} aclfile & Sets ACLs on file. & setfacl -m \seqsplit{user:root:rwx} \seqsplit{/home/file.txt} \tn 
% Row Count 26 (+ 4)
% Row 21
\SetRowColor{white}
\mymulticolumn{3}{x{5.377cm}}{setfacl -m group:\textless{}group\textgreater{}:\textless{}permission\textgreater{} \textless{}file\textgreater{}} \tn 
% Row Count 27 (+ 1)
% Row 22
\SetRowColor{LightBackground}
setfacl -x group:root \textless{}file/dir\textgreater{} &  & -x remove specific ACL, -k removes all default ACLs, -b removes all ACLs \tn 
% Row Count 33 (+ 6)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}