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tech 12 August 2026

Odd Comments and Strange Doings in Unix

Dive into the fascinating world of strange error messages and odd comments within Unix, revealing a unique engineering culture.

Article inspired by the original source
Odd Comments and Strange Doings in Unix ↗ 9p.io

Introduction

The tech culture is filled with myths, funny stories, and curiosities, and Unix is no exception. Since its creation in the 70s, Unix has not only revolutionized the world of operating systems but also left an indelible cultural mark through its odd comments and strange error messages. These little nuggets of computing history offer a fascinating glimpse into the minds of software pioneers.

The Mystery of "values of β will give rise to dom!"

One of the most famous examples of this unique Unix culture is the error message "values of β will give rise to dom!" found in Sixth Edition Unix. This message, appearing in the unlikely situation within the mv command, intrigued users with its mysterious syntax. The message originates from a line of code in mv.c:

``c write(1, "values of \016B\017 will give rise to dom!\n", 37); ``

In this line, ASCII SI and SO control characters were used to shift the Model 37 Teletype into its extended character set, transforming the "B" into the Greek letter beta.

The Culture of Playful Engineering

These messages and comments are not just accidents or errors but often reflect a culture of playful and creative engineering. The Unix developers, at the time, worked in a collaborative and innovative environment where humor and intellectual curiosity were encouraged. Such messages served as a wink to colleagues and a way to relieve work pressure.

Other Famous Examples

"You are not expected to understand this"

Another iconic example is the comment found in the Unix kernel source code:

``c / You are not expected to understand this / ``

This comment, written by Dennis Ritchie, has become a symbol of the complexity and depth of Unix code. It underscores the humility of developers in the face of their own creation's complexity.

"Now panic and freak out"

In the Plan 9 operating system, created by some of the same Unix developers, a particular message appears during a kernel panic: "Now panic and freak out." This once again shows a sense of humor and acceptance of human limitations.

Why Does It Matter Today?

These comments and error messages are more than just historical anecdotes. They represent a development philosophy that values creativity, humor, and camaraderie. In a world where systems are becoming increasingly complex, adopting a work culture that encourages curiosity and lightheartedness can be a significant asset.

Conclusion

Unix's legacy is not limited to its technical contributions. The "odd comments and strange doings" are a reminder of the importance of culture and humanity in software development. As a tech decision-maker or entrepreneur, embracing this spirit can transform not only your products but also your team.

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Unix error messages software culture programming humor historical anecdotes
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