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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}
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