00-intro.tex

% !TeX root = bash.tex
\section{Intro}
\begin{frame}
\frametitle{A brief history of bash}
\begin{figure}[h]
    \centering
    \includegraphics[height=3cm]{bash_logo}
\end{figure}
\begin{itemize}
    \item Born: 1989
    \item Probably played Pokémon on the Game Boy
    \item Is an umbrella term for zsh, fish, …
    \item Runs on Unix-like environments
\end{itemize}
\end{frame}

\begin{frame}
\frametitle{A brief history of Unix}
\begin{figure}[h]
    \centering
    \includegraphics[height=3cm]{unix_logo}
\end{figure}
\begin{itemize}
    \item Born: 1969
    \item Probably listened to Michael Jackson
    \item Gave rise to Linux, BSD, and Mac OS
    \item We call them ``Unix-like''
\end{itemize}
\end{frame}

\begin{frame}
\frametitle{Unix: The Good Part}
The Unix philosophy (paraphrased):
\begin{itemize}
    \item Store data in plain text
    \item Hierarchical file system
    \item Everything is a file
    \item One tool does one thing
    \item Tools together strong
\end{itemize}
\begin{block}{Quote}
The power of a system comes more from the relationships among programs than
from the programs themselves.
\begin{flushright}
    — Brian Kernighan and Rob Pike
    \footnote{The UNIX Programming Environment. 1984. viii}
\end{flushright}
\end{block}
\end{frame}

\begin{frame}
\frametitle{Unix: The Chaotic Part}
``Unix'' is mostly created by these three groups of people who routinely
disagree with each other:\footnote{Not convinced? Try \tt{man ps}.}
\begin{figure}[h]
    \centering
    \includegraphics[height=3cm]{gnu_linux_bsd}
    \caption{GNU, Linux, and BSD\footnote{Yes, I know there are many BSDs}}
\end{figure}
Despite this, they all hate Microsoft.

We will be talking about GNU today.
\end{frame}

\begin{frame}
\frametitle{Before we start}
\begin{itemize}
    \item This is \textbf{not} a Linux workshop
        (although I encourage you to use it)
    \item This is not a vim workshop either
    \item You should use a \tt{monospace} font
    \item Anyone caught using PowerShell will be kicked out of the venue
\end{itemize}
\end{frame}

\begin{frame}[fragile]
\frametitle{Conventions in slides}
\begin{itemize}
    \item \tt{\$} indicates a \textbf{bash command}.
        Do not type the \tt{\$}.
    \item \tt{\#} indicates a \textbf{comment}.
        Do not type it or anything after it.
\end{itemize}
For example, when you see:
\begin{lstlisting}[language=bash]
$ echo hello  # printf("hello\n");
\end{lstlisting}
You are going to type:
\begin{lstlisting}[language=bash]
echo hello
\end{lstlisting}
Then hit Enter. I encourage you to type commands by hand.
\end{frame}