lua

About Lua

Lua is powerful, lightweight interpreted scripting language with a small footprint. It supports multi-paradigm programming: procedural, object-oriented, functional, data-driven and data-description. Lua is rarely used as a stand-alone language. Instead Lua focuses on scripting, as “secondary” language which integrated into other software written in mainly C/C++.

Some examples of Lua’s usage areas: network software, video games, user graphical interfaces, graphics/text processing software, etc. Lua also is good for beginners to create simple video games.

Lua interpreter is written in ANSI C and it is extremely small, both interpreter and source code is only about 1Mb. Lua is considered one of the fastest interpreted languages. Checking Lua

Start

Some distributions already have Lua pre-installed. Open your terminal and type:

lua

If the output is be something like:

Lua 5.4.3  Copyright (C) 1994-2021 Lua.org, PUC-Rio
>

Install posix

install the required Lua libraries using Luarocks (if not installed already):

luarocks install luaposix

Install yaml

Depending on your Linux distribution, the installation method for libyaml may differ. Here are the commands for some common distributions:

For Ubuntu/Debian-based systems, use apt-get:

sudo apt-get update
sudo apt-get install libyaml-dev

For Fedora, use dnf:

sudo dnf install libyaml-devel

For CentOS/RHEL, use yum:

sudo yum install libyaml-devel

After installing libyaml using the appropriate package manager for your Linux distribution, retry installing lyaml with LuaRocks:

luarocks install --local lyaml

Don't forget to set up your environment variables using the eval $(luarocks path --bin) command so Lua can find your locally installed modules.

1. Run the installation command with sudo to gain elevated privileges:

sudo luarocks install lyaml

2. Install the Lua module locally for your user by using the --local option:

luarocks install --local lyaml

When you install the module locally, you need to ensure that Lua can find it by setting up the LUA_PATH and LUA_CPATH environment variables appropriately. The luarocks path command will output the correct settings; you can add them to your shell configuration file (e.g., .bashrc, .bash_profile, .zshrc, etc.) to apply them permanently:

eval $(luarocks path --bin)

After running luarocks install --local lyaml, execute the above eval command or restart your shell to apply the settings. Then, try running your script again.

clone

git clone https://github.com/apitee/lua.git

lua apitee.lua git.yaml

Hint! To exit Lua’s interpreter press Ctrl + D.