samrose

Booting with CNXSoft image

Reference: http://www.cnx-software.com/2012/07/31/84-mb-minimal-raspbian-armhf-image-for-raspberry-pi/

curl -O https://dl.dropbox.com/u/45842273/2012-07-15-wheezy-raspian-minimal.img.7z

yum install p7zip
7za e 2012-07-15-wheezy-raspian-minimal.img.7z

qemu-system-arm -kernel kernel-qemu -cpu arm1176 -m 256 -M versatilepb -no-reboot -serial stdio -append "root=/dev/sda2 panic=1" -hda 2012-07-15-wheezy-raspian-minimal.img -net nic -net user -vnc :0 -net tap,ifname=vnet0,script=no,downscript=no

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

Python script to convert DBF database file to CSV

First download dbfpy: http://sourceforge.net/projects/dbfpy/files/latest/download?source=files
Then install: sudo python setup.py install

To convert DBF file to CSV:

./dbf2csv database.dbf

	#!/bin/bash

	# -- sane bash errors -- #
	set -Eeuo pipefail

	# -- docker exec -- #
	cat > Dockerfile <<EOF
	FROM nixos/nix

	RUN nix-channel --add https://github.com/Holo-Host/nixpkgs-channels/archive/680f9d7ea90dd0b48b51f29899c3110196b0e913.tar.gz

	with import <nixpkgs> {};

	#{stdenv, fetchFromGitHub, python, ninja}:

	stdenv.mkDerivation rec {
	name = "scylla-${version}";
	version = "2.1.0";

	src = fetchgit {
	url = "https://github.com/scylladb/scylla";

	super: self:

	let
	rustOverlayRepo = self.fetchFromGitHub {
	owner = "mozilla";
	repo = "nixpkgs-mozilla";
	rev = "90d41cd5dd6c31c7bfaaab68dd6f00bae596d742";
	sha256 = "0cpv969mgv2v8fk6l9s24xq1qphwsvzbhf8fq4v6bkkwssm0kzn6";
	};
	rustOverlay = import "${rustOverlayRepo}/rust-overlay.nix" self super;

	{
	pkgs ? (
	let
	pkgs = import <nixpkgs>;
	pkgs_ = (pkgs {});
	rustOverlay = (pkgs_.fetchFromGitHub {
	owner = "mozilla";
	repo = "nixpkgs-mozilla";
	rev = "1608d31f7e5b2415fb80b5d76f97c009507bc45f";
	sha256 = "0mznf82k7bxpjyvigxvvwpmi6gvg3b30l58z36x192q2xxv47v1k";

	# Edit this configuration file to define what should be installed on
	# your system. Help is available in the configuration.nix(5) man page
	# and in the NixOS manual (accessible by running ‘nixos-help’).

	# Download graphical ISO, http://nixos.org/nixos/download.html
	# if you want to do an install over an SSH connection

	# $ systemctl start sshd.service
	# $ useradd remoteinstaller
	# $ passwd remoteinstaller

	let
	# Wrap a nginx server block in an HTTPS site
	wrapSSL = site: cert: key: block: ''
	server {
	listen 80;
	listen [::]:80;
	server_name ${site};

	location /nginx_status {
	stub_status on;

	#!/usr/bin/bash

	##############################################
	#from http://zeromq.org/intro:get-the-software
	##############################################

	#get zeromq
	wget https://github.com/zeromq/zeromq4-1/releases/download/v4.1.5/zeromq-4.1.5.tar.gz

	#unpack tarball package