path: root/ult/ult_10/ult10.tex

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\sffamily \bfseries
\title
[Miscellaneous Tools]
{Miscellaneous Tools}
\author
[FOSSEE]
{\small Talk to a Teacher\\{\color{blue}\url{http://spoken-tutorial.org}}\\\vspace{0.25cm}National Mission on Education
 through ICT\\{\color{blue}\url{ http://sakshat.ac.in}} \\ [1.9cm]
   Contributed by FOSSEE Team \\IIT Bombay  \\[0.3cm]
}

% slide 1
\begin{frame}
   \titlepage
\end{frame}


\begin{frame}
\frametitle{Objectives}
\label{sec-2}

At the end of this tutorial, you will be able to,
\begin{itemize}
\item Search for files in various ways
\item Compare files with same names
\item Create and extract an archive
\item Customize a shell
\end{itemize}
\end{frame}

\begin{frame}
\frametitle{Pre-requisites}
\label{sec-3}

Spoken tutorial on,
\begin{itemize}
\item Getting started with Linux
\item Basic File Handling
\end{itemize}
\end{frame}

\begin{frame}[fragile]
  \frametitle{\texttt{`find'}}
  \begin{itemize}
  \item `find' command helps to find files in a directory hierarchy
  \item Offers a very complex feature set\\ For Eg: search files by name, owner, date, etc.
  \item Look at the \texttt{man} page of `find' 
  \end{itemize}
\end{frame}

\begin{frame}[fragile]
  \frametitle{\texttt{`cmp'}}
  \begin{lstlisting}
   $ find . -name quick.c
   ./Desktop/programs/quick.c
   ./c-folder/quick.c
   $ cmp Desktop/programs/quick.c 
     c-folder/quick.c
  \end{lstlisting} % $
  \begin{itemize}
  \item No output when files are exactly same
  \item Else, gives location where the first difference occurs 
  \end{itemize}
\end{frame}

\begin{frame}[fragile]
  \frametitle{\texttt{`diff'}}
  \begin{itemize}
  \item We know the files are different. However to see the exact differences..
  \end{itemize}
\hspace{30pt}\verb~$diff Desktop/programs/quick.c ~\\
\hspace{40pt}\verb~c-folder/quick.c~
 
  \begin{itemize}
  \item \texttt{>} indicates content only in second file
  \item \texttt{<} indicates content only in first file
  \end{itemize}
\end{frame}

\begin{frame}[fragile]
\frametitle{\texttt{`tar'}}
\begin{itemize}
\item \emph{tarball} -- essentially a collection of files
\item May or may not be compressed
\item Eases the job of storing, backing-up \& transporting files
\end{itemize}
\end{frame}

\begin{frame}[fragile]
\frametitle{Extracting an Archive}
\verb~mkdir extract~
\verb~cp allfiles.tar extract/~
\verb~cd extract~\\
\verb~tar -xvf allfiles.tar~


\begin{itemize}
\item \texttt{-x} --- Extract files within the archive
\item \texttt{-f} --- Specify the archive file
\item \texttt{-v} --- Be verbose
\end{itemize}
\end{frame}

\begin{frame}[fragile]
  \frametitle{Compressed Archives}
  \begin{itemize}
  \item \texttt{tar} - create \& extract compressed archives
  \item Additional options to handle compressed archives
    \begin{center}
      \begin{tabular}{|l|l|}\hline
        Compression      &  Option   \\\hline
        gzip   &  \texttt{-z}        \\\hline
        bzip2  &  \texttt{-j}        \\\hline
        lzma   &  \texttt{-{}-lzma}  \\\hline
      \end{tabular}
    \end{center}
  \end{itemize}
\end{frame}


\begin{frame}
\frametitle{Customizing Shell}
\begin{itemize}
\item Bash reads \texttt{/etc/profile},
  \texttt{\textasciitilde{}/.bash\_profile},
  \texttt{\textasciitilde{}/.bash\_login} and
  \texttt{\textasciitilde{}/.profile} in order, when starting
  as a login shell 
\item Reads from \texttt{\textasciitilde{}/.bashrc}, when an interactive non-login
  shell is started
\end{itemize}
\end{frame}


\begin{frame}
\frametitle{Summary}
\label{sec-8}

  In this tutorial, we have learnt to,


\begin{itemize}
\item Use ``find'' command to find files in a directory hierarchy
\item Find differences between files with the same name, using the
    ``cmp'' and ``diff'' commands
\end{itemize}
\end{frame}

\begin{frame}
\frametitle{Summary..}
\label{sec-8}

\begin{itemize}
\item Extract and create compressed archive's using the ``tar'' command
\item Customize one's shell according to one's choice
\end{itemize}
\end{frame}

\begin{frame}[fragile]
\frametitle{Evaluation}
\label{sec-9}


\begin{enumerate}
\item Look at the man page of ``find'' and state the options which
    deal with symbolic links.
\vspace{8pt}
\item How do you append tar files to an archive ?
\end{enumerate}
\end{frame}
\begin{frame}
\frametitle{Solutions}

\begin{enumerate}
\item  -H,  -L  and  -P   
\vspace{15pt}
\item \$tar -Af <tar-file><tar-file-to-be-added>
\begin{center}
OR \\
\end{center}
\$tar -rf <tar-file><tar-file-to-be-added>
\end{enumerate}

\end{frame}

\begin{frame}
\frametitle{SDES \& FOSSEE}
\begin{center}
\begin{itemize}
\item \small{SDES}\\
\small{\color{LimeGreen}Software Development techniques for Engineers and Scientists} \\
\scriptsize An initiative by FOSSEE. \\
\vspace{3pt}
\scriptsize For more information on SDES, please visit {\color{blue}\url{http://fossee.in/sdes}}\\
\vspace{10pt}
\item \small{FOSSEE}\\
\small {\color{LimeGreen}Free and Open-source Software for \\Science and Engineering Education} \\
\scriptsize Based at IIT Bombay, Funded by MHRD.\\
\vspace{3pt}
\scriptsize Part of National Mission on Education through ICT \\(NME-ICT) \\
\end{itemize}
\end{center}
\end{frame}

\begin{frame}
\frametitle{About the Spoken Tutorial Project}
\begin{itemize}
\item Watch the video available at {\color{blue}\url{http://spoken-tutorial.org /What\_is\_a\_Spoken\_Tutorial}} 
\item It summarises the Spoken Tutorial project 
\item If you do not have good bandwidth, you can download and watch it
\end{itemize}
\end{frame}

\begin{frame}
\frametitle{Spoken Tutorial Workshops}The Spoken Tutorial Project Team 
\begin{itemize}
\item Conducts workshops using spoken tutorials 
\item Gives certificates to those who pass an online test 
\item For more details, please write to \\ \hspace {0.5cm}{\color{blue}contact@spoken-tutorial.org}
\end{itemize}
\end{frame}

\begin{frame}
\frametitle{Acknowledgements}
\begin{itemize}
\item Spoken Tutorial Project is a part of the Talk to a Teacher  project 
\item It is supported by the National Mission on Education through  ICT, MHRD, Government of India 
\item More information on this Mission is available at: \\{\color{blue}\url{http://spoken-tutorial.org/NMEICT-Intro}}
\end{itemize}
\end{frame}

\begin{frame}

  \begin{block}{}
  \begin{center}
  {\Large THANK YOU!} 
  \end{center}
  \end{block}
\begin{block}{}
  \begin{center}
    For more Information, visit our website\\
    {\color{blue}\url{http://fossee.in/}}
  \end{center}  
  \end{block}
\end{frame}

\end{document}