# Learning Lua

## Introduction

* This Repo's most content is taken from `Programming in Lua 4th Ed. by Roberto Lerusalimschy of Lua.Org`

## Get Lua

* [Installation](#installation)
  * `wget https://www.lua.org/ftp/lua-5.4.7.tar.gz`
  * `tar zxf lua-5.4.7.tar.gz`
  * `cd lua-5.4.7`
  * `make all install`
* [Test Installation](#test-installation)

  ```lua
  $ lua -v
  Lua 5.4.7  Copyright (C) 1994-2024 Lua.org, PUC-Rio
  ```

  * Start Lua in interactive Mode like ipython or python by running `lua` on command line
    * To Exit Lua Interactive Mode use ctrl-D or os.exit()
  * To start an interactive session after running a lua script use eg. `lua -i basics-1.lua`. Helpful for Debugging

## Basics

* Running Chunks
  * Each piece of code that Lua executes, such as a file or a single line in interactive mode, is called a chunk.
    * Run chunks by starting lua in interactive mode directly with `lua`
    * Run chunks by `dofile("<filename>")` inside another lua script or in an interactive session
    * Run chunks by adding `#!/usr/bin/env lua` at the beginning of a lua script , the set executable bit for script via `chmod +x basics-1.lua` ,and run it with name of script eg `./basics-1.lua`


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