Ubuntu is a free computer system, like Windows or macOS, but it’s built by a community. It’s great for programmers because it’s very flexible and has lots of tools already built-in that help you code.

This simple Python program renames all files in your current directory that contain specific text, replacing that text with a given pattern.

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But it has some other superpowers, too: it lets you run Python packages and programs without having to formally install them, all by way of one simple command.