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Author: elle

Elle is a Course Author and former technical writer at Linux Academy and Cloud Assessments with a focus on DevOps and a love of Linux. Tweet her at @ellejaclyn.

Everyday Regular Expressions

Everyday Regular Expressions

Nearly every programmer or systems administrator will use regular expressions at some point in their career; whether it's as simple as changing a select bit of text in vim, or as advanced as validating detailed bits of information. While it's not uncommon to think of confusing hieroglyphics of characters when considering regular expressions, if you use Linux or do any programming, then you've probably already used them in many of your day-to-day tasks.For those looking for a more detailed look at regular expressions, we've recently released Mastering Regular Expressions, and to give you a taste of the course without giving you anything away, we're going to learn some basic regex and some basic Perl by building a simple CLI-based regex validator.

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Learn the YAML Basics

Learn the YAML Basics

As YAML is increasingly used alongside various agile languages and applications, learning the basics of this data serialization language will let you jump in and start working with a variety of tools, such as Ansible, Kubernetes, and Salt. Luckily, YAML is easily human-readable and simple to pick up, so here's a quick "YAML in five minutes" rundown:

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