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ELF Format Cheatsheet

Introduction

Executable and Linkable Format (ELF), is the default binary format on Linux-based systems.

Compilation

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TLDR;

On an Debian/Ubuntu-based system, to install texlive-full without docs and language packs, simply do this:

sudo apt install `sudo apt --assume-no install texlive-full | \
		awk '/The following additional packages will be installed/{f=1;next} /Suggested packages/{f=0} f' | \
		tr ' ' '\n' | grep -vP 'doc$' | grep -vP 'texlive-lang' | grep -vP 'latex-cjk' | tr '\n' ' '`

After this, if you wish to install the language packs, selectively install them. E.g.:

	@import url("https://fonts.googleapis.com/css?family=Roboto+Slab:100,300,400,700");
	@import url("https://fonts.googleapis.com/css?family=Raleway:300,300i,400,400i,500,500i,600,600i,700,700i,800,800i,900,900i");

	* {
	margin: 0;
	border: 0;
	box-sizing: border-box;
	}

	:root {

	# This script will explain how to transfer a file to EC2 using SSM ONLY!

	# You will need to have permission to run SSM commands on the target machine and have sudo access as well

	# Infos
	INSTANCE_ID=i-1234567890
	FILE_NAME=the_file.tar.gz

	# Step 1: Run command on machine to install netcat and dump from port to filename
	# < Start session

	Explanation file: db.js
	This code imports the mongoose library which allows to connect to a MongoDB database.
	There are two URIs defined to connect to two different databases: MONGO_URI and MOBILE_URI.
	Each URI contains connection information to a remote MongoDB database, including user credentials.

	The connectDBs function uses the mongoose.createConnection method to create connections to these two
	databases using the respective URIs. The useUnifiedTopology and useNewUrlParser options are set to enable the new
	unified topology policy and use MongoDB's new URL parser, respectively.

	The function returns an object that contains the connections to these two databases as qrCodeDb and userDB properties.

	# @see https://docs.aws.amazon.com/ja_jp/AmazonCloudFront/latest/DeveloperGuide/LocationsOfEdgeServers.html
	# @see https://morizyun.github.io/ruby/rails-controller-get-ip.html
	# @see https://dev.classmethod.jp/cloud/aws/get-ec2-public-ip-range-by-powershell/
	# @see https://github.com/rails/rails/blob/c81af6a/actionpack/lib/action_dispatch/middleware/remote_ip.rb#L112-L150
	Rails.application.configure do
	ip_ranges_res = Faraday.get('https://ip-ranges.amazonaws.com/ip-ranges.json')
	ip_ranges = JSON.parse(ip_ranges_res.body)
	cloudfront_ips = ip_ranges['prefixes'].select { \|v\| v['service'] == 'CLOUDFRONT' }.map { \|v\| IPAddr.new(v['ip_prefix']) } +
	ip_ranges['ipv6_prefixes'].select { \|v\| v['service'] == 'CLOUDFRONT' }.map { \|v\| IPAddr.new(v['ipv6_prefix']) }

	<!-- add this to your header -->
	<div id="google_translate_element"></div>

	<!-- to your js part -->
	<script src="script.js"></script>
	<script type="text/javascript">
	function googleTranslateElementInit() {
	new google.translate.TranslateElement(
	{pageLanguage: 'en'},
	'google_translate_element'

	# -- coding: utf-8 --
	"""
	list of currencies currently in circulation

	taken from http://www.currency-iso.org/iso_index/iso_tables/iso_tables_a1.htm
	http://www.iso.org/iso/currency_codes_list-1.html

	2011-08-11
	"""