Open Source

Installing Let's Encrypt on Ubuntu 16.04

SSL certificates are used within web servers to encrypt the traffic between the server and client, providing extra security for users accessing your application.

Shell Command: Find

Find recursively searches a location for files or directories. It has many flags to output only the files that you are looking for.

New User Tutorial: Basic Shell Commands

Linux and all version of unix (including MacOS) have a very rich command line that can be used in many different ways to form very powerful commands.

Have you tried Linux?

GNU/Linux is a free operating system that has been released under the GPL (General Public Licence).