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Learning git and GitHub

Tutorial videos

We have an excellent training team at GitHub, and they've produced a series of videos talking about the basics of how to use git and GitHub.

The youtube channel is here.

GitHub guides

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# A demonstration/exploration of generating animation "frames" by combining
# objects that emit sequences of frames, with the following goals:
#
# * Declarative syntax for convenience and readability
# * Composability, for easily assembling larger animations from smaller pieces
# * Interruptability (see Flagged), so an animation sequence can be interrupted
# * Lazily-evaluated combinations so clock-based animations can be mixed.

# A top-level animation.
class Animation

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#include <avr/io.h>
#include <util/delay.h>

int main(void)
{
    DDRA |= _BV(DDA0);
    while(1)
    {
        PORTA ^= _BV(PORTA0);
        _delay_ms(500);

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# From https://blog.svpino.com/2015/05/07/five-programming-problems-every-software-engineer-should-be-able-to-solve-in-less-than-1-hour
# Write a program that outputs all possibilities to put + or - or nothing
# between the numbers 1, 2, ..., 9 (in this order) such that the result is
# always 100. For example: 1 + 2 + 34 – 5 + 67 – 8 + 9 = 100.

# Hacky version:
["", "+", "-"].repeated_permutation(8).each do |operations|
  string = (2..9).zip(operations).reduce("1") do |str, (operand, operator)|
    "#{str}#{operator}#{operand}"
  end

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--- /opt/local/lib/ruby/site_ruby/1.8/rubygems.rb	2008-12-07 13:54:11.000000000 -0700
+++ /opt/local/lib/ruby/site_ruby/1.8/rubygems.rb	2008-12-07 13:54:11.000000000 -0700
@@ -128,6 +128,10 @@
   # Gem::Requirement and Gem::Version documentation.
 
   def self.activate(gem, *version_requirements)
+    if ENV["GEM_DEBUG"]
+      STDERR.puts "activating #{gem} #{version_requirements.inspect}"
+      caller[2..-1].each {|c| STDERR.puts "  #{c}"}
+    end

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function d() {
  if [ -n "$1" ]; then
    if [ -d "$1" ]; then
      pushd $1 >/dev/null
      mvim -c :NT
      popd >/dev/null
    else
      echo "$1 is not a directory"
    fi
  else

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require "ostruct"

describe "wtf" do
  it "fails" do
    o = OpenStruct.new :foo => "lol", :bar => "what"
    o.stub!(:gem)
    o.gem
    o.gem "foo"
  end
end

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~ ➔ sudo easy_install simplejson
Password:
Searching for simplejson
Reading http://pypi.python.org/simple/simplejson/
Reading http://undefined.org/python/#simplejson
Best match: simplejson 2.0.9
Downloading http://pypi.python.org/packages/source/s/simplejson/simplejson-2.0.9.tar.gz#md5=af5e67a39ca3408563411d357e6d5e47
Processing simplejson-2.0.9.tar.gz
Running simplejson-2.0.9/setup.py -q bdist_egg --dist-dir /tmp/easy_install-Irpzrr/simplejson-2.0.9/egg-dist-tmp-T_rpGb
No eggs found in /tmp/easy_install-Irpzrr/simplejson-2.0.9/egg-dist-tmp-T_rpGb (setup script problem?)

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#!/bin/sh
#
# This shell script passes all its arguments to the binary inside the
# MacVim.app application bundle.  If you make links to this script as view,
# gvim, etc., then it will peek at the name used to call it and set options
# appropriately.
#
# Based on a script by Wout Mertens and suggestions from Laurent Bihanic.  This
# version is the fault of Benji Fisher, 16 May 2005 (with modifications by Nico
# Weber and Bjorn Winckler, Aug 13 2007).

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" size the window so it fills the macbook screen
set columns=181
set lines=53
set gfn=Andale_Mono:h12

" colorscheme twilight2
colorscheme vibrantink

set transparency=5