\documentclass[12pt]{article}
\usepackage[utf8]{inputenc}
\usepackage{verbatim}
\usepackage[left=0.1cm,right=2cm,top=2cm,bottom=2cm]{geometry}
\begin{document}
\title{Commande Shell Test}
\author{Author}
\maketitle
%\write18{cat /proc/cpuinfo >> a.txt}
%\write18{mount | column -t >> a.txt}
%\write18{dmidecode -s system-product-name>> a.txt}
%\write18{ls -l /usr/bin> a.txt}
\write18{/usr/bin/gcc hello_world -o Bonjour}
\write18{./Bonjour > a.txt}
timinput{
.txt}
\end{document}