meleu

@meleu

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I'm a Software Engineer sharing what I know and learning in public.

BrazilJoined January 2020

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I love sharing knowledge, getting involved in meaningful projects, reading books, and RetroAchievements.

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meleu's blogs

meleu sharing knowledge, mostly about the Linux world.meleu.hashnode.dev5 posts

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Recently published

Mmeleumeleu.hashnode.devSep 9, 2022 · 5 min read

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

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...

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Mmeleumeleu.hashnode.devSep 9, 2022 · 8 min read

The best way I found to learn Ruby

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...

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Mmeleumeleu.hashnode.devDec 12, 2020 · 5 min read

Checking if an array contains an element in bash

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...

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Mmeleumeleu.hashnode.devDec 5, 2020 · 13 min read

How to join() array elements in a bash script

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...

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Mmeleumeleu.hashnode.devNov 28, 2020 · 8 min read

What the #! shebang really does

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. ...

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meleu

About

Available for

meleu's blogs

Recently published

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

The best way I found to learn Ruby

Checking if an array contains an element in bash

How to join() array elements in a bash script

What the #! shebang really does

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meleu

About

Available for

meleu's blogs

Recently published

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

The best way I found to learn Ruby

Checking if an array contains an element in bash

How to join() array elements in a bash script

What the #! shebang really does