\frametitle{Pipe Examples}
\begin{block}{Basic Piping}
\begin{verbatim}
# Count entries in directory listing
ls -1 | wc -l

# Search and sort
cat file.txt | grep "pattern" | sort

# Find largest files
du -h | sort -rh | head -10

# Process logs
cat access.log | grep "404" | wc -l
\end{verbatim}
\end{block}
\begin{alertblock}<2->{Career Note}
Data pipelines are used everywhere: ETL jobs, log analysis, build systems.
\end{alertblock}
