Sometimes, while working on a project, a simple templating system is necessary either for code or documentation generation. While you can get quite far with sed and awk, their nifty one-liners will eventually become monstrous, especially as your templates get more complex. How do you deal with this growing complexity? For a lot of use-cases the simple m4 macro processor is exactly what you want. This command is probably installed on your machine without you even realizing it. It comes standa...
