shinout

Copyright 2012 Shin Suzuki<[email protected]>

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,

six8

// Dependency resolution, adapted from https://gist.github.com/1232505/f16308bc14966c8d003c2686b1c258ec41303c1f
function resolve(graph) {
  var sorted  = [], // sorted list of IDs ( returned value )
      visited = {}; // hash: id of already visited node => true

  // 2. topological sort
  Object.keys(graph).forEach(function visit(name, ancestors) {
    if (!Array.isArray(ancestors)) ancestors = [];
    ancestors.push(name);
    visited[name] = true;

b1nary

require 'rubygems'
require 'rest-client'

# Socksify is amazing handling Proxys, also Socks like tor
# The proxy is simply aviable in the whole script
require 'socksify'
TCPSocket::socks_server = "127.0.0.1"
TCPSocket::socks_port = 9070

# Create a cookie

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

atenni

Problem: When linking to the raw version of a gist, the link changes with each revision.

Solution:

To return the first file from a gist: https://gist.github.com/[gist_user]/[gist_id]/raw/

• Example: https://gist.github.com/atenni/5604522/raw/
• Works even when you change the filename.

To get a file from multi–file gist: https://gist.github.com/[gist_user]/[gist_id]/raw/[file_name]

aaronpk

[[email protected] www]$ cat .htaccess 
RewriteEngine on
RewriteCond %{QUERY_STRING} resource=acct:(.+)
RewriteRule ^\.well-known/webfinger /profile/%1? [L]

[[email protected] www]$ cat profile/[email protected]
{
  "subject": "acct:[email protected]",
  "links": [
    {

arunoda

Installing SSHPASS

SSHPass is a tiny utility, which allows you to provide the ssh password without using the prompt. This will very helpful for scripting. SSHPass is not good to use in multi-user environment. If you use SSHPass on your development machine, it don't do anything evil.

Installing on Ubuntu

apt-get install sshpass

Installing on OS X

nickjacob

[Unit]
Description=Demonstrate Bash

[Service]
ExecStartPre=/usr/bin/bash -c "/usr/bin/systemctl set-environment MYVAR=$(( 2 + 2 ))"
ExecStart=/usr/bin/echo "2 + 2 = ${MYVAR}"

Integralist

• Dynamic Dispatch
• Dynamic Method
• Ghost Methods
• Dynamic Proxies
• Blank Slate
• Kernel Method
• Flattening the Scope (aka Nested Lexical Scopes)
• Context Probe
• Class Eval (not really a 'spell' more just a demonstration of its usage)
• Class Macros

AlainODea

import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;

public class HelloCovariance {
  public static void main(String[] args) {
    ConcurrentHashMap<String, String> properties = new ConcurrentHashMap<>();
    Set<String> keySet = properties.keySet();
  }
}