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24 min read

Create your Joomla website using Docker

In this article, we will learn how to use Docker to install Joomla on your localhost and start a new website in seconds (don't want to wait? Jump to the "Final docker-compose.yml" chapter).

I will use a Linux console (I'm running WSL on my Windows computer and I have chosen Ubuntu for my distribution) but since Docker can also be used on Windows, you can perfectly run, exactly, the same commands in an MS-DOS / Powershell console.

3 min read

Update php.ini when using a Docker image

This article aims to answer the following situation: I'm using a Docker image to run my website and I should modify the php.ini file; how do I do this?

A real-world example is: you've followed my article Create your Joomla website using Docker and everything is working fine. The website is running and you wish, using the Joomla administration web interface, upload a big file to your site. But, then, you get an error The selected file cannot be transferred because it is larger than the maximum upload size allowed.

Your PHP settings before changes

10 min read

Running Quarto Markdown in Docker

Quarto is a tool for producing PDF, Word document, HTML web pages, ePub files, slideshows and many, many more output based on a Markdown file.

Using Quarto, you can render any markdown content to a new PDF f.i.

Quarto supports a very large number of features, to which are added extensions from its community, making it a really practical tool for anyone wishing to produce documentation.

Personally, I haven't used a Word-type word processor for several years; nor have I used PowerPoint since, I don't even know when the last time was.

And yet, I produce a great deal of documentation and slideshows. I write everything in markdown and generate pdfs or slideshows from the same content.

Until recently, I'd been using pandoc but, having taken the time to look around Quarto, it's a hell of a lot more powerful.

2 min read

Bash - ASCII art

I write a lot of Bash scripts, and I like to have a similar approach for each one. One of the things I always do is to include a good old-fashioned ASCII Art banner, perhaps for the geek factor, but mostly to make a bigger visual impact.

I use to create my banners, so let's take a closer look.

Sample ASCII art

2 min read

Bash - Loading environment variables from a file

Imagine you've a .env file like and you wish to process that file in a Bash script.

DOCKER_GIT_FULLNAME="Christophe Avonture"

Using a configuration file will enable you to externalize the management of your constants, as well as reuse variables from another application, such as a site developed in Laravel.

Let's take a look at how to do this as correctly as possible.

2 min read

Build a mind map using Docker and Markdown

As a markdown lover, I always enjoy finding a little tool that lets me write a text and have it converted into another format.

For this article, we're going to write, in plain text, a mind map, which means that our text will be converted into a mind map image.

2 min read

Update all out-of-date Windows programs in batch

Use the winget tool to install and manage applications

If you're working under Linux or WSL, you know very well the sudo apt-get update && sudo apt-get upgrade instruction to ask the operating system to upgrade programs present on your disk with newer version.

Under Windows, since a few years (starting with Windows 10), there is such command too: it's winget.

3 min read

The jq utility for Linux

jq is a powerful utility for Linux allowing manipulating JSON data from the command line and can be integrated into shell scripts.

Using jq you can beautify JSON output but also filter it like f.i. showing only a given node.

3 min read

The xmlstarlet utility for Linux

xmlstarlet is a powerful utility for Linux allowing manipulating XML data from the command line and can be integrated into shell scripts.

Using xmlstarlet you can beautify XML output but also filter it like f.i. showing only a given node.