The GNU tree utility prints out a directory structure in a tree-like display using utf-8 characters. I've been using it as something to build when learning a new programming language. This repository contains all of the implementations that I have done in various languages. To execute, run make [language] where language is one of:

• c
• c++
• elixir
• go
• java
• javascript
• objectivec
• php
• python
• ruby
• rust
• scala
• shell

Note that this does not include information on getting the necessary utilities installed, so you may not be able to run every one of them depending on your setup.