List public keys in Debian and check if they are expired or about to expire.

On this occasion, I’m going to show you how to list the public keys in Debian in case one of them is out of date and in your case, how to solve it. The first step is to open a terminal as root, and list the keys of the repositories that we have... Read More

How to protect the accidental deletion of files in Linux – rm-protection

Although Gnu/Linux is a very safe operating system, the fact is that sometimes it happens that we delete files by mistake and then it is difficult to recover. This can happen and more if our computer is shared. Here we tell you how to avoid this thanks... Read More

Linux: How To Use RVM to Manage Ruby

Ruby is a very popular programming language that has Ruby on Rails, or RoR, is a popular development framework that allows you to easily get your application up and running with minimal hassle.

Developing applications often times requires that you emulate different environments. Different versions of Ruby may be necessary for different projects. With conventional installations, this would impede your ability to be flexible.

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How To Install Ruby on Rails on Linux Mint 17.3

Ruby on Rails is one of the most popular application stacks for developers wishing to create sites and web apps. The Ruby programming language, coupled with the Rails development framework, makes app development simple.

Since Ruby on Rails doesn’t come in a neatly packaged format, getting the framework installed used to be one of the more difficult parts of getting started. Luckily, tools like rvm, the Ruby Version Manager, have made installation simple.

In this guide, we’ll show how to install rvm on an Linux Mint 17.3, and use it to install a stable version of Ruby and Rails.

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