Folha_de_ponto_exemplo.tex

\documentclass[12pt,a4paper]{article}
\usepackage[top=1cm, bottom=1cm, left=2cm, right=2cm]{geometry}
\linespread{1.3}
\usepackage{sans}
\usepackage[portuguese,brazilian]{babel}
\usepackage[utf8]{inputenc}

\begin{document}
\newcommand{\mesanterior}{Mês1}
\newcommand{\mesatual}{Mês2}
\newcommand{\anoanterior}{Ano1}
\newcommand{\anoatual}{Ano2}

\thispagestyle{empty}
\begin{center}
\Large
\textbf{Rede Linux IME-USP\\Folha de Ponto}
\\
\large
\mesanterior\ de \anoanterior/\mesatual\ de \anoatual


\large
\textbf{Nome:}
\underline{~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
}

\textbf{Assinatura:}
\underline{~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~}
\end{center}
\normalsize
\begin{center}
\begin{tabular}{|p{3.5cm}|p{9cm}|}
\hline
\multicolumn{2}{|c|}{\textbf{\mesanterior}} \\ \hline
21/\mesanterior &  \\ \hline
22/\mesanterior &  \\ \hline
23/\mesanterior &  \\ \hline
24/\mesanterior &  \\ \hline
25/\mesanterior &  \\ \hline
26/\mesanterior &  \\ \hline
27/\mesanterior &  \\ \hline
28/\mesanterior &  \\ \hline
29/\mesanterior &  \\ \hline
30/\mesanterior &  \\ \hline
31/\mesanterior &  \\ \hline \hline
\multicolumn{2}{|c|}{\textbf{\mesatual}} \\ \hline
01/\mesatual & \\ \hline
02/\mesatual & \\ \hline
03/\mesatual & \\ \hline
04/\mesatual & \\ \hline
05/\mesatual & \\ \hline
06/\mesatual & \\ \hline
07/\mesatual & \\ \hline
08/\mesatual & \\ \hline
09/\mesatual & \\ \hline
10/\mesatual &  \\ \hline
11/\mesatual &  \\ \hline
12/\mesatual &  \\ \hline
13/\mesatual &  \\ \hline
14/\mesatual &  \\ \hline
15/\mesatual &  \\ \hline
16/\mesatual &  \\ \hline
17/\mesatual &  \\ \hline
18/\mesatual &  \\ \hline
19/\mesatual &  \\ \hline
20/\mesatual &  \\ \hline
\end{tabular}
\end{center}

\end{document}