%%
%% The LaTeX Companion, 2ed (second printing August 2004)
%%
%% Example 3-5-6 on page 179.
%%
%% Copyright (C) 2004 Frank Mittelbach, Michel Goossens,
%%    Johannes Braams, David Carlisle, and Chris Rowley
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%%
%% See http://www.latex-project.org/lppl.txt for details.
%%

\documentclass{ttctexa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{207.0pt}

\addtolength\textwidth{-30pt}
\newcommand\sample{ Some text to experiment
                     with line numbering.}
\StartShownPreambleCommands
\usepackage{lineno}
\linenumbers
% \sample defined as before

\StopShownPreambleCommands
\begin{document}
\sample \sample \sample \par
\modulolinenumbers[2]
And now a paragraph with numbers on every
second line.\sample \sample \sample \par
\end{document}