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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}
+\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 Sort lines of text files.
+\item Print lines matching a pattern.
+\item Translate or delete characters.
+\item Omit repeated lines.
+\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
+\end{itemize}
+\end{frame}
+
+\begin{frame}[fragile]
+  \frametitle{\texttt{sort} \ldots}
+  \begin{itemize}
+  \item The command below sorts, based on marks in first subject
+  \end{itemize}
+  \begin{lstlisting}
+    $ cut -d " " -f 2- marks1.txt \
+      | paste -d " " students.txt -\
+      | sort -t " " -k 2 -rn
+  \end{lstlisting} % $
+  \begin{itemize}
+  \item \texttt{-t} specifies the delimiter between fields
+  \item \texttt{-k} specifies the field to use for sorting
+  \item \texttt{-r} for sorting in the reverse order
+  \item \texttt{-n} to choose numerical sorting
+  \end{itemize}
+\end{frame}
+
+\begin{frame}[fragile]
+  \frametitle{\texttt{tr}}
+  \begin{itemize}
+  \item Translates or deletes characters
+  \item Reads from \texttt{stdin} and outputs to \texttt{stdout}
+  \item Given, two sets of characters, replaces one with other
+  \item The following, replaces all lower-case with upper-case 
+  \end{itemize}
+  \begin{lstlisting}
+    $ cat students.txt | tr a-z A-Z
+  \end{lstlisting} % $
+\end{frame}
+
+\begin{frame}
+\frametitle{Summary}
+\label{sec-8}
+
+  In this tutorial, we have learnt to,
+
+
+\begin{itemize}
+\item Use the ``sort'' command to sort lines of text files. 
+\item Use the ``grep'' command to search text pattern.
+\item Use the ``tr'' command to translate and/or delete characters.
+\item Use the ``uniq'' command to omit repeated lines in a text. 
+\end{itemize}
+\end{frame}
+\begin{frame}[fragile]
+\frametitle{Evaluation}
+\label{sec-9}
+
+
+\begin{enumerate}
+\item To obtain patterns; one per line, which of the following command is used ?
+\vspace{3pt}
+\begin{itemize}
+\item grep -f
+\item grep -i
+\item grep -v
+\item grep -e
+\end{itemize}
+\vspace{8pt}
+\item Translate the word `linux' to upper-case.
+\vspace{8pt}
+\item Sort the output of the ``ls -al'' command.
+\end{enumerate}
+\end{frame}
+\begin{frame}
+\frametitle{Solutions}
+\label{sec-10}
+
+
+\begin{enumerate}
+\item grep -f
+\vspace{15pt}
+\item \$ echo `linux' | tr a-z A-Z
+\vspace{15pt}
+\item \$ ls -al | sort -n -k5
+\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}
+