Instructions & Guides

Instructions

Convert SVG files from RGB to CMYK

How to convert SVG files with RGB color profiles to CMYK with the help of Scribus. Contains conversion steps and instructions for CMYK SVG and PDF output.

Mailbox.org custom email domain

How to add a custom domain email alias, including SPF, DMARC and DKIM to an existing mailbox.org email account. Simple step-by-step instruction.

Vim: Delete lines by pattern

Learn how to delete all lines matching specific patterns, covering multiple patterns, ranges, case-(in)sensitivity, and other advanced techniques with examples.

Vim: Edit multiple files at once

How to edit multiple files in the buffer of the Vim text editor at once. Search and replace command examples to change and save multiple files at the same time.

How to add AdSense in GTM

Step by step instructions for implementing Google AdSense Code into a Google Tag Manager (GTM) container and fire it on page view.

Vim: Delete all blank lines

This guide explains how to make Vim delete all blank lines or lines containing only whitespace (tabs or spaces) for efficient text cleanup. Also applies to Neovim.

ThinkPad X13 Arch Linux install

Beginner friendly guide on how to install Arch Linux on a Lenovo ThinkPad X13 Gen 5 (Intel). Full process from obtaining Arch Linux to a finished installation.

Install Jekyll on Arch Linux

Jekyll on Arch Linux - Beginner friendly guide on how to install Jekyll - the static site generator - on Arch Linux using the Bash shell, RubyGems and Bundler.

How to redirect users on the Web

Learn how to redirect users of web pages, to ensure users reach the correct content when a web page is moved or renamed. Improve user experience and avoid common mistakes.

Shut down a frozen Linux system

Guide how to safely power off a frozen Linux system. Safe shut down methods for unresponsive systems to prevent data corruption and data loss.

Netlify: Delete form submissions

How to set up Netlify forms to be GDPR conformant by automatically deleting form submissions after processing. Netlify functions to delete form submissions.

Netlify: Loading fonts from Git-LFS

How to enable Netlify to load fonts and other assets from Git Large File Storage (LFS). Fixes, e.g. downloadable font: rejected by sanitizer error.

Vim: Open multiple files in tabs at once

How to open multiple files in tabs of the Vim text editor at once. Learn to open files from within Vim and from the commandline. Recursively and non-recursively, at the same time.

JS RegExp URL validation

JavaScript RegExp examples to validate URI paths, also known as URL slugs. Code examples to match lowercase characters, hyphens and numbers.

Publications

256 Colors cheat sheet

List of 256 colors for Xterm prompt (console). Contains displayed color, Xterm Name, Xterm Number, HEX, RGB and HSL codes.

Bundler cheat sheet

Cheat sheet for Bundler, the Ruby gems package manager.

CSS selectors

Cheat sheet for Cascading Style Sheets (CSS) selectors and combinators. Includes specificity score. Many examples of simple, compound and complex selectors.

Git cheat sheet

Git is a version control system used for tracking changes in text files. The cheat sheet contains the most common and useful Git commands to configure and work with Git.

Grep cheat sheet

Cheat sheet with the most common and useful Grep commands. Grep is a command-line utility for searching plain-text data sets for lines that match a regular expression.

HTML void elements

The concept of void elements in HTML and how they differ from self-closing tags in XML, XHTML, and SVG. Highlighting, syntax, and parsing differences.

HTTP status codes

List of all Hypertext Transfer Protocol (HTTP) response status codes, the standardized, three-digit messages from servers indicating the outcome of client requests.

ISO 3166-1 country codes

List of ISO 3166-1 alpha-2 and Alpha-3 country codes, along with the corresponding country code top-level domain (ccTLD) and country phone dial code.

ISO 639 language codes

ISO 639 language names (including native names) and their corresponding ISO 639-1 Alpha-2 language codes.

JavaScript Arrays

Introdution to arrays in JavaScript, covering their basic syntax, accessing elements, modifying elements, getting the length, and various array methods.

JavaScript Variables

Introdution to variables in JavaScript using let and const and the differences between them and var. Naming conventions, best practices, data types.

jq recipes & command examples

Recipes and command examples for jq, a lightweight and flexible command-line JSON processor. Learn to delete and keep specific arrays and objects.

What is the Vim <leader> key?

The <leader> key in Vim is a customizable prefix used for user-defined shortcuts. Learn how to identify the current <leader> key, and how to customize it.

Linux exit status codes

List of standard and custom Linux exit status codes. Numeric values returned by commands or scripts, indicating success, failure, or specific error conditions.

List of Web search engines

Explore the list of great web search engine alternatives for the Clearnet and Darknet. The list includes information on language support, the crawler, owner and country of origin.

File storage and naming convention

Description of a quick-to-learn, tried-and-tested storage and naming convention for storing invoices, insurance policies, letters, operating instructions, etc. in a flat hierarchy.

Pacman cheat sheet

Cheat sheet for Pacman, the Arch Linux package manager. List of common and essential commands and options. Also includes cheats for paccache.

Pandoc cheat sheet

Cheat sheet for Pandoc, the versatile document converter, to convert files from one markup format to another. Pandoc commands to apply to your publishing workflows.

Robots.txt template

Simple robots.txt template. Allow lists legitimate user-agents / bots. Keeps unwanted robots out. Easily maintainable and immediately useful for most websites.

Rsync backup script

Simple rsync backup shell script to back up the user home directory to mountpoint, e.g. a hard drive, thumb drive, sd card, etc. Verifies mountpoint exists, writes log to mountpoint.

GNU sed recipes

Recipes and command examples for sed, stream editor, a non-interactive GNU command-line text editor.

tmux cheat sheet

Cheat sheet for the open-source terminal multiplexer tmux. Getting started with tmux. Learn to master tmux with simple commands and shortcuts.

Vim cheat sheet

Vim cheat sheet and reference guide. Also includes shortcuts and commands for NERDTree and Vimium. List of essential Vim commands. Learn Vim.

“Content precedes design. Design in the absence of content is not design, it's decoration.”

Jeffery Zeldman, American web designer, author, and advocate for web standardsTwitter, 2008 - IT quotes