\batchmode
\makeatletter
\def\input@path{{/home/liviu/inst/documentation_R//}}
\makeatother
\documentclass[a4paper,english]{article}
\renewcommand{\rmdefault}{cmr}
\renewcommand{\sfdefault}{cmss}
\renewcommand{\ttdefault}{cmtt}
\renewcommand{\familydefault}{\rmdefault}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}

\makeatletter
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Textclass specific LaTeX commands.
\usepackage{noweb}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% User specified LaTeX commands.
%\usepackage[cyr]{aeguill}
%\usepackage[francais]{babel}

\usepackage{babel}
\makeatother

\usepackage{/usr/lib/R/share/texmf/Sweave}
\begin{document}
<<Hello world!>>

\begin{Schunk}
\begin{Sinput}
> 2 + 2
\end{Sinput}
\begin{Soutput}
[1] 4
\end{Soutput}
\end{Schunk}

Manière, façon
\end{document}
