@meleu

exercism: the most effective way to learn a new programming language

Sep 9, 2022 · 5 min read · Intro In this article I show my reasons to believe that exercism.org is currently (2022) the best platform to learn a new programming language. And why it stands out from other similar platforms of coding challenges. Expect to read some opinionated c...

The best way I found to learn Ruby

Sep 9, 2022 · 8 min read · Intro In this article I'm going to share things that are working quite well for me to learn the Ruby language. The goal here is NOT to learn programming neither learn how to build web applications. I don't even talk about Rails here. The goal here is...

Checking if an array contains an element in bash

Dec 12, 2020 · 5 min read · When working with arrays it's quite common to face the need to check if an array includes a certain element. Although we can have arrays in bash, we don't have a specific method to check that. In this article we're going to address this problem using...

How to join() array elements in a bash script

Dec 5, 2020 · 13 min read · Some languages (like JavaScript and PHP) have a function like join() or implode() to join the elements of an array separating them by a character or a string. Let's do the same in pure bash. As a bonus, at the end this article you'll know: the diffe...

What the #! shebang really does

Nov 28, 2020 · 8 min read · What exactly happens when we run a file starting with #! (aka shebang), and why some people use #!/usr/bin/env bash. How the #! works The #! shebang is used to tell the kernel which interpreter should be used to run the commands present in the file. ...