emmahsax

Common File Permissions

Permission Code	Used For...	Example	Owner	Group	Public
755	Executable	bin/bash_script.sh	Read, Write, Execute	Read, Execute	Read, Execute
644	Standard read/write	README.md	Read, Write	Read	Read
600	Private Read-only	~/.ssh/id_ed25519	Read, Write	N/A	N/A

See more at Chmod Calculator.

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Memory Sizes

Common Name (decimal system)	Decimal Value (bytes)	Binary System Equivalent	Binary Value (bytes)	Equal To (binary)	Description
Bit	1/8	Bit	1/8	1/8 Byte	Every individual binary digit (0 and 1)
Nibble	1/2	Nibble	1/2	4 Bits or 1/2 Byte	Combination of four bits of binary digits or half of an octet – can be represented by a single hexadecimal digit
Byte	1	Byte	1	8 Bits	A unit of data that is eight binary digits long, and can be represented using a letter, number, or character (e.g. "h", "7", or "$")
Kilobyte (KB)	1,000 (103)	Kibibyte (KiB)	1,024 (210)	1,024 Bytes	Often used to measure the size of small files
Megabyte (MB)	1,000,000 (106)	Mebibyte (MiB)	1,048,576 (220)	1,024 KB	Often used to measure the size of large files
Gigabyte (

emmahsax

Easily Pluralizing English Words in Go

This code makes it easy to pluralize words based off of English pluralizing rules.

$ go run main.go
2 balls
1 boy
3 foxes
2 babies

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Generating TOTP tokens from a seeds file on your machine in Ruby

This file assumes you have a file (~/.totp.yml) on your machine where you store the SERVICEs, and their secret keys:

aws: rAndOmCharaCTeRsHerE
google: rAndOmCharaCTeRsHerE

Then, you can call like this:

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A simple Kubernetes pod

Apply this pod to a Kubernetes cluster:

kubectl apply -f simple_pod.yaml

This pod will be applied to the default namespace.

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Navbar with Bootstrap 5

Here's the html file. This file assumes that there's two SVG icons (an X and a menu bar) downloaded in the /assets/images/icons directory:

<header class="sticky-top">
  <nav class="navbar navbar-expand-md navbar-dark py-0 py-md-0">
    <div class="container-fluid">
      <!-- Left hand side of navbar -->
      <a class="navbar-brand mb-0" href="/" target="_self">

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Offering both PhotoSwipe v5 and Lightbox2 in a static site

This documents an example of how to offer both PhotoSwipe v5 and Lightbox2 in one project.

Notes

PhotoSwipe

PhotoSwipe helps to make the photo clickable, and then it'll zoom for the user and create a gallery, you can call the photo _include:

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Example .travis.yml file to deploy to a GitHub Pages branch

os: linux
language: ruby
cache: bundler
install: bundle install

branches:
  only:

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Installing Old Homebrew Formulas

Over the past several years, Homebrew has made it continually difficult to install an outdated formula. I'm not quite sure why, but it's been a struggle for developers for the past 7+ years.

However, there is a workaround (however it's not straight-forward). For this example, I'll use ruby-build:

1. Note the version you currently have installed:

$ ruby-build --version
ruby-build 20210825

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Merging Forks with Upstream

Check to see if there's changes in upstream that you need to make in your fork

Look for a message like this. If it says that your default branch is behind the upstream's default branch (usually master), it means there are updates:

If there are updates, then merge your local fork with upstream