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-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% Using Linux Tools
-%
-% Author: FOSSEE 
-% Copyright (c) 2009, FOSSEE, IIT Bombay
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-\documentclass[12pt,compress]{beamer}
-
-\mode<presentation>
-{
-  \usetheme{Warsaw}
-  \useoutertheme{infolines}
-  \setbeamercovered{transparent}
-}
-
-\usepackage[english]{babel}
-\usepackage[latin1]{inputenc}
-%\usepackage{times}
-\usepackage[T1]{fontenc}
-
-% Taken from Fernando's slides.
-\usepackage{ae,aecompl}
-\usepackage{mathpazo,courier,euler}
-\usepackage[scaled=.95]{helvet}
-
-\definecolor{darkgreen}{rgb}{0,0.5,0}
-
-\usepackage{listings}
-\lstset{language=sh,
-    basicstyle=\ttfamily\bfseries,
-    commentstyle=\color{red}\itshape,
-  stringstyle=\color{darkgreen},
-  showstringspaces=false,
-  keywordstyle=\color{blue}\bfseries}
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% DOCUMENT STARTS
-\begin{document}
-
-\begin{frame}
-
-\begin{center}
-\vspace{12pt}
-\textcolor{blue}{\huge Using Linux Tools\\Part VII}
-\end{center}
-\vspace{18pt}
-\begin{center}
-\vspace{10pt}
-\includegraphics[scale=0.95]{../images/fossee-logo.png}\\
-\vspace{5pt}
-\scriptsize Developed by FOSSEE Team, IIT-Bombay. \\ 
-\scriptsize Funded by National Mission on Education through ICT\\
-\scriptsize  MHRD,Govt. of India\\
-\includegraphics[scale=0.30]{../images/iitb-logo.png}\\
-\end{center}
-\end{frame}
-\begin{frame}
-\frametitle{Objectives}
-\label{sec-2}
-
-At the end of this tutorial, you will be able to,
-\begin{itemize}
-\item Prepare scripts using 'Control Operators'.
-\item Understand what 'Environment Variables' are.
-\end{itemize}
-\end{frame}
-
-\begin{frame}
-\frametitle{Pre-requisite}
-\label{sec-3}
-
-Spoken tutorial on -
-\begin{itemize}
-\item Using Linux tools -- Part I
-\item Using Linux tools -- Part II
-\item Using Linux tools -- Part III
-\item Using Linux tools -- Part IV
-\item Using Linux tools -- Part V
-\item Using Linux tools -- Part VI
-\end{itemize}
-\end{frame}
-
-\begin{frame}[fragile]
-  \frametitle{\texttt{if}}
-  \begin{itemize}
-  \item Print message if directory exists in \texttt{pwd}
-  \end{itemize}
-  \begin{lstlisting}
-    #!/bin/bash
-    if test -d $1
-    then
-    echo "Yes, the directory" \
-    $1 "is present"
-    fi
-  \end{lstlisting} % $
-\end{frame}
-
-\begin{frame}[fragile]
-  \frametitle{\texttt{[ ]} - alias for \texttt{test}}
-  \begin{itemize}
-  \item Square brackets (\texttt{[]}) can be used instead of
-    \texttt{test}
-  \item 
-  \end{itemize}
-  \begin{lstlisting}
-    #!/bin/bash
-    if [ $1 -lt 0 ]
-    then
-    echo "number is negative"
-    else
-    echo "number is non-negative"
-    fi
-  \end{lstlisting} % $
-  \begin{itemize}
-  \item \alert{spacing is important, when using the square brackets}
-  \end{itemize}
-\end{frame}
-
-\begin{frame}[fragile]
-  \frametitle{\texttt{for}}
-  \begin{block}{Problem}
-    Given a set of \texttt{.mp3} files, that have names beginning with
-    numbers followed by their names --- \texttt{08 - Society.mp3} ---
-    rename the files to have just the names. Also replace any spaces
-    in the name with hyphens. 
-  \end{block}
-  \begin{itemize}
-  \item Loop over the list of files
-  \item Process the names, to get new names
-  \item Rename the files
-  \end{itemize}
-\end{frame}
-
-\begin{frame}[fragile]
-  \frametitle{Environment Variables}
-  \begin{itemize}
-  \item Pass information from shell to programs running in it
-  \item Behavior of programs can change based on values of variables
-  \item Environment variables vs. Shell variables
-  \item Shell variables -- only current instance of the shell
-  \item Environment variables -- valid for the whole session
-  \item Convention -- environment variables are UPPER CASE
-  \end{itemize}
-\end{frame}
-
-\begin{frame}
-\frametitle{Summary}
-\label{sec-8}
-
-  In this tutorial, we have learnt to,
-
-
-\begin{itemize}
-\item Prepare scripts using control structures like ``if'', ``if-else'',
-      ``for'' and ``while''.
-\item Use 'environment variables'.
-\item Export a variable to the environment of all the processes, using 
-      the ``export'' command.
-\end{itemize}
-\end{frame}
-\begin{frame}[fragile]
-\frametitle{Evaluation}
-\label{sec-9}
-
-
-\begin{enumerate}
-\item Print the text ``dog man'' in such a way that the prompt 
-    continues after the text.
-\vspace{8pt}
-\item How can you add a new path variable ``/data/myscripts'' to \$PATH variable ?
-\end{enumerate}
-\end{frame}
-\begin{frame}
-\frametitle{Solutions}
-\label{sec-10}
-
-
-\begin{enumerate}
-\item \$ echo -n dog man
-\vspace{15pt}
-\item \$ export PATH=\$PATH://data/myscripts
-\end{enumerate}
-\end{frame}
-\begin{frame}
-
-  \begin{block}{}
-  \begin{center}
-  \textcolor{blue}{\Large THANK YOU!} 
-  \end{center}
-  \end{block}
-\begin{block}{}
-  \begin{center}
-    For more Information, visit our website\\
-    \url{http://fossee.in/}
-  \end{center}  
-  \end{block}
-\end{frame}
-
-\end{document}
-
-