mandelbrot-viewer is a simple and interactive viewer, you can zoom in and out with + and -.

The GIF screencast is of course sped up, somehow, it looks like something has been locked and the system is tracking down the subject like in sci-fi movie.

mandelbrot-viewer is written by David Ulrich in C with ncurses under the AGPLv3, based on Ken Perlin’s code snippet, currently git-a3f2762 (2015-10-30).

Pipong is a simple clone of Pong game, the classic table tennis video game. It doesn’t have much to offer, but it definitely is playable.

(that’s a blinking cursor)

It needs a terminal size of 100x40 and two players, using ef and ok to move the paddles, but it feels more like left hand vs. right hand by the locations of the keys.

Pipong was created by Dong-jun Lim on 2015-09-18, written in C++ under the MIT License, currently git-c9a519b (2015-11-23).

GNUjump is a clone of xjump aka. FALLING TOWER, it uses SDL and has a lot of more options, it also supports multiplayer.

GNUjump 1.0.8 with wincrash theme, watch in SDLjump theme

It has much more options, you can change game settings, such as FPS and trailing effect; video, such as using OpenGL and antialiasing; and sound volumes. Beside the must-have high scores, a replay feature, so you can watch other people’s playing.

The sound effect is hilarious, not your usual sounds, but someone’s vocals, watch the video and you will hear those.

Here are the four themes.

Canfield is part of BSD Games, a Patience/Solitaire game, also a gambling game.

Canfield: Instructions, Betting, Card counting

At first few plays, I could barely get a few into the foundations, I thought even I wasn’t good at Patience game, but I couldn’t be that bad, could I?

Finally, I looked up on Wikipedia and the first line it reads:

[…] with a very low probability of winning. According to legend, it is originally a casino game, […]. In England, it is known as Demon. [some emphases mine]


man ascii(7)
man console_codes(4)  # for ANSI escape code

I was looking around and stumbled on this man ascii and I was like dumbfounded, wondering how I could not have known about this.

Why? Because I searched for the Wikipedia pages for ASCII and ANSI escape code. Maybe rarely for ASCII character codes, but quite often for the escape codes whenever I was writing a shell script that would need to move cursor or clear screen, such as

How I found console_codes, since it doesn’t have “ANSI” nor “escape” in the title? I searched with [manpage ansi escape code] for a manual page and found that on the first hit. I couldn’t believe that I used to go to Wikipedia for those codes, when they are already on my disk all along.

It’s funny to think about there is nearly everything on the Internet, the knowledge is vast if you are willing to read, but you don’t have to go out to the virtual world, there already is plenty for us to digest inside our computers.

It’s like human on Earth, and the universe seems without edges if you consider our knowledge, engineering, and capabilities, but the facts are that we don’t even learn a fraction of the planet we are living on, the truth is that we don’t even know everything about ourselves, our human body.