\frametitle{Viewing Examples}
\begin{block}{File Viewing}
\begin{verbatim}
# Display entire file
cat file.txt

# Page through file (Search with /, quit with q)
less file.txt

# First 20 lines
head -n 20 file.txt

# Last 15 lines
tail -n 15 file.txt

# Follow log file as it grows
tail -f /var/log/system.log
\end{verbatim}
\end{block}
