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%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
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% of cheat sheets but are needed for some symbol support.
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% Document Info
\author{DeeJRoth (DeeJRoth)}
\pdfinfo{
  /Title (rvm-cheat-sheet.pdf)
  /Creator (Cheatography)
  /Author (DeeJRoth (DeeJRoth))
  /Subject (rvm Cheat Sheet)
}

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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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\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{rvm Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{DeeJRoth (DeeJRoth)} via \textcolor{DarkBackground}{\uline{cheatography.com/2739/cs/2471/}}}
\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}DeeJRoth (DeeJRoth) \\
  \uline{cheatography.com/deejroth} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 16th August, 2014.\\
   Updated 13th May, 2016.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
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  \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}
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\begin{multicols*}{2}

\begin{tabularx}{8.4cm}{x{2.56 cm} x{5.44 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{RVM Cheat Sheet Info}}  \tn
% Row 0
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Originally Posted: & \seqsplit{http://cheat.errtheblog.com/s/rvm} \tn 
% Row Count 2 (+ 2)
% Row 1
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RVM Homepage: & https://rvm.io\{\{link="https://rvm.io"\}\} \tn 
% Row Count 4 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Install curl and RVM}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{If it is not installed already, install `curl`.  \newline % Row Count 1 (+ 1)
To check if it is installed, run the command `which curl`. If there is not output, run the following command: \newline % Row Count 4 (+ 3)
`apt-get install curl` \newline % Row Count 5 (+ 1)
`curl -L get.rvm.io | bash -s stable` \newline % Row Count 6 (+ 1)
close and reopen your terminal window after running this command. To make sure it installed and is available, type `which rvm` or `rvm -{}-verion`; but only after reopening your terminal window.% Row Count 10 (+ 4)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{See \seqsplit{https://rvm.io/rvm/install} and \seqsplit{http://rvm.io/rvm/installation/}}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.68 cm} x{4.32 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Install Ruby}}  \tn
% Row 0
\SetRowColor{LightBackground}
`rvm install 1.9.3` & Latest known patch level \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
`rvm install 1.9.3 -j \#` & Parallel compile, replace {\emph{\#}} with number of CPU cores \tn 
% Row Count 5 (+ 3)
% Row 2
\SetRowColor{LightBackground}
`rvm install 1.9.3 -{}-patch falcon` & Use a patch ({\emph{falcon}} for performance) \tn 
% Row Count 7 (+ 2)
% Row 3
\SetRowColor{white}
`rvm install 1.9.2-p318` & Patch level 318 \tn 
% Row Count 9 (+ 2)
% Row 4
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`rvm install rbx -{}-1.9` & Rubinius with 1.9 mode set as default \tn 
% Row Count 11 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Update RVM}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{`rvm get stable`% Row Count 1 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{In case of problems try first with development version \newline (maybe it's already fixed): \newline  \newline     `rvm get head` \newline  \newline Very old installations might not support those update methods, just run the installer and reopen your terminal.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Install Ruby Dependencies}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{Follow the instructions from running: `rvm requirements`% Row Count 2 (+ 2)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{List Known Rubies}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{`rvm list known`% Row Count 1 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.04 cm} x{4.96 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{List All Rubies and Gemsets}}  \tn
% Row 0
\SetRowColor{LightBackground}
`ruby list` & List rubies only \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
`rvm list gemsets` & List rubies and gemsets \tn 
% Row Count 3 (+ 2)
% Row 2
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`rvm gemset list` & List gemsets for current ruby \tn 
% Row Count 5 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{More Help is Available}}  \tn
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\mymulticolumn{1}{x{8.4cm}}{in your terminal: `rvm help`} \tn 
% Row Count 1 (+ 1)
% Row 1
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\mymulticolumn{1}{x{8.4cm}}{https://rvm.io/} \tn 
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% Row 2
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\mymulticolumn{1}{x{8.4cm}}{IRC \#rvm @ freenode - \seqsplit{http://webchat.freenode.net/?channels=\#rvm}} \tn 
% Row Count 4 (+ 2)
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\end{tabularx}
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\begin{tabularx}{8.4cm}{x{3.04 cm} x{3.344 cm} x{1.216 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{So you got through it all....and it won't work!}}  \tn
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{\bf{Error}} & {\bf{Poosible Fix}} & {\bf{Worked from}} \tn 
% Row Count 3 (+ 3)
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error: says `rvm use ...` won't work & in your terminal, type `/bin/bash -{}-login` & \seqsplit{LXTerminal} \tn 
% Row Count 6 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\SetRowColor{LightBackground}
\mymulticolumn{3}{x{8.4cm}}{These are things you can do to {\bf{try}} and solve your issue}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.28 cm} x{4.72 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Selecting Ruby for Work}}  \tn
% Row 0
\SetRowColor{LightBackground}
`rvm system` & For system ruby with fallback to default \tn 
% Row Count 2 (+ 2)
% Row 1
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`rvm use jruby` & For current session only \tn 
% Row Count 4 (+ 2)
% Row 2
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`rvm use -{}-default 1.9.3` & For current and new sessions \tn 
% Row Count 6 (+ 2)
% Row 3
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`rvm use -{}-ruby-version rbx` & For current session and this project \tn 
% Row Count 8 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{RVM will automatically use a ruby and gemset when you `cd` to a project directory. \newline  \newline Read more on project files: \newline  \newline - \seqsplit{https://rvm.io/workflow/projects/\#ruby-versions}}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Using ruby and gems}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{After selecting Ruby work as usual: \newline % Row Count 1 (+ 1)
   `ruby -v` \newline % Row Count 2 (+ 1)
    `gem install haml` \newline % Row Count 3 (+ 1)
    `haml`% Row Count 4 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4.24 cm} x{3.76 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Temporarily selecting another Ruby or gemset}}  \tn
% Row 0
\SetRowColor{LightBackground}
`rvm 1.8.7 do gem install rspec` & in the given ruby \tn 
% Row Count 2 (+ 2)
% Row 1
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`rvm 1.8.7,1.9.2 do gem install haml` & in these two rubies \tn 
% Row Count 4 (+ 2)
% Row 2
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`rvm @global do gem install gist` & in @global gemset of current ruby \tn 
% Row Count 6 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Gemsets}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{RVM by default allows creating multiple environments for one ruby - called {\emph{gemsets}}. \newline % Row Count 2 (+ 2)
Gemsets can be specified together with ruby name using gemsets separator(@): \newline % Row Count 4 (+ 2)
- \seqsplit{ruby-1.9.3-p125@my-project} \newline % Row Count 5 (+ 1)
During installation of Ruby, RVM creates two gemsets: \newline % Row Count 7 (+ 2)
- default - automatically selected when no @gemset specified: rvm use 1.9.3 \newline % Row Count 9 (+ 2)
- global  - super gemset, inherited by all other gemsets for the given ruby% Row Count 11 (+ 2)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
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\begin{tabularx}{8.4cm}{x{4.16 cm} x{3.84 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Working with gemsets}}  \tn
% Row 0
\SetRowColor{LightBackground}
`rvm use 1.8.7` & use the ruby to manage gemsets for \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
`rvm gemset create project\_name` & create a gemset \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
`rvm gemset use project\_name` & use a gemset in this ruby \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
`rvm gemset list` & list gemsets in this ruby \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
`rvm gemset delete project\_name` & delete a gemset \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
`rvm \seqsplit{1.9.1@other\_project\_name`} & use another ruby and gemset \tn 
% Row Count 12 (+ 2)
% Row 6
\SetRowColor{LightBackground}
`rvm 1.9.3@\_project -{}-create -{}-rvmrc` & use and create gemset \& .rvmrc \tn 
% Row Count 14 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}