Posts Tagged “snippet”

just a small piece

• POV-ray Dice 22 February 2022
  • benchmarks
  • computer-graphics
  • performance
  • snippet

  I saw a captcha with dice thread on hacker news. The general idea of the captcha was to find the picture of dice with the right sum on it. I was wondering how hard it would be to generate several thousand of these dice images, and how long it would take using POV-ray. POV-ray is the Persistence of Vision Ray Tracer. It takes a text based description of the scene built using various primitives like spheres and boxes to produce a ray traced image. The POV-ray language is Turing complete and allows some really advanced programming features, such as macros, loops and conditionals, which I take full advantage of for this scene. The dice are even transparent.

• Finding Jekyll Posts to Update With Cover Images 10 January 2021
  • bash
  • grep
  • jekyll
  • notes
  • refactor-code
  • shell
  • snippet
  • tutorial

  I recently updated my site to make use of cover images on the post listing. I wanted to make sure that I got all of the posts that need to be updated. I used grep to find posts which had an image in them, but no cover attribute in their front-matter.

• Inspecting All Running Docker Containers 29 October 2020
  • bash
  • docker
  • json
  • linux
  • snippet
  • tutorial

  I just discovered how to run inspect on all running docker containers.

• Incrementing a Semantic Version String in Bash 30 April 2019
  • bash
  • snippet
  • tutorial

  I wrote a bash function that takes a semantic version string and bumps the version number. It supports all 3 layers. I needed it for the deploy script I was working on. It’s fairly trivial, I just thought I would share it.

• Calculating the Size of Your Video Library 07 December 2016
  • bash
  • ffmpeg
  • linux
  • programming
  • shell
  • snippet

  This command will calculate the size of your movie and video library in days. You can modify the awk command as you see fit to calculate the time lengths.