Alessandro Aglietti alessandro-aglietti

Operating Ropsten Ethereum testnet

from a newbie to newbies

Intro

I believe that a development environment is one of the access key in learning new technologies. I didn't find on the internet a simple and common path to make the Ropsten network, the Ethereum public testnet, work.

So I'm writing down a couple of command lines and links that can be useful to achieve it.

Resources and requirements

Just tried to put this in a more readable format: https://github.com/svanderbleek/haskellandchill.com/blob/master/a-conversation-about-oop-vs-fp-turns-constructive.md

Person	Time	Message
sagar	10:47	why is that, why is OOP trash
katychuang	10:48	excellent question
katychuang	10:49	I've been told FP and OOP are different paradigms
katychuang	10:52	I'm going to butcher a quote from a talk by Evie so I'm going to paraphrase… She said something like when you work with OOP you create lots of objects and rules on how they should interact and yet somehow end up having to touch each other a lot and inappropriately
katychuang	10:53	On the other hand FP (especially Haskell) is like working with shapes, like that baby shape fitting toy where you focus more on fitting the type parameters correctly
katychuang	10:56	I think of programming as building a piping system. FP (especia

May 8, 2018

I wrote this four years ago, so instead use this command:

$ docker rmi $(docker images -q -f dangling=true)

a simple git branching model (written in 2013)

This is a very simple git workflow. It (and variants) is in use by many people. I settled on it after using it very effectively at Athena. GitHub does something similar; Zach Holman mentioned it in this talk.

Update: Woah, thanks for all the attention. Didn't expect this simple rant to get popular.

	#!/bin/bash
	#
	# sudo apt-get install id3v2 ffmpeg
	#
	# USAGE:
	# cd /book title/
	# bash ~/this_script_path.sh
	# rm *.m4b (you need to manually remove the original in case something goes wrong)
	#
	#

	//Paste this into a chrome console to dump out a list of the search urls on the page
	function fixLinksOfClassL() {
	// fix old-style class="l" links
	var ts = document.getElementsByClassName("l");
	for (var i=0; i < ts.length; i++) {
	var t = ts[i];
	if (t.tagName == "A") {
	// remove javascript callback first
	t.removeAttribute("onmousedown");
	// fix link if necessary

	input {

	file {
	type => "php-error"
	path => "/var/www/error_log"
	sincedb_path => "/opt/logstash/sincedb-access"
	}

	}

	import java.io.UnsupportedEncodingException;
	import java.security.InvalidAlgorithmParameterException;
	import java.security.InvalidKeyException;
	import java.security.Key;
	import java.security.KeyPair;
	import java.security.KeyPairGenerator;
	import java.security.NoSuchAlgorithmException;
	import java.security.NoSuchProviderException;
	import java.security.PrivateKey;
	import java.security.PublicKey;

	input {
	tcp {
	type => "linux-syslog"
	port => 3333
	}

	file {
	type => "linux-syslog"
	path => [ "/var/log/auth.log" ]
	}

	mkfifo reply
	ncat -kl 8765 < reply \| ncat 127.0.0.1 4567 > reply # listens on port 8765 and redirects to localhost:4567. Runs until C-c.
	rm reply # cleanup after end