rkulla

#!/usr/bin/perl
# Easy port scanner
# I wrote this in the 90s to help learn socket programming
# ./quickscan -h for usage

use Socket;

$| = 1; # so \r works right

my ($ip, $protocol, $port, $myhouse, $yourhouse, $log);

Synchro

<?php
/**
 * This is an example of a practical encoder and decoder for base-62 data in PHP
 * It differs from the majority of examples in that it's fast enough for moderate data sizes, unlike multiprecision converters
 * To be practical, base-62 encoding needs to use internal chunking and padding because base-62 does not fit exactly into any integral number of bits
 * This means the output is not quite compatible with multiprecision conversions,
 * but the encoded data retains all the desirable properties of base-62, so (unlike any base-64 encoding) it's URL, DNS, email address and pathname safe
 * @author     Marcus Bointon <marcus@synchromedia.co.uk>
 * @copyright  2011 Marcus Bointon
 * @license    http://www.opensource.org/licenses/mit-license.html MIT License

stvkoch

Useful One-Line Scripts for Perl                    Jan 28 2012 | version 1.08
--------------------------------                    -----------   ------------

Compiled by Peteris Krumins (peter@catonmat.net, @pkrumins on Twitter)
http://www.catonmat.net -- good coders code, great reuse

Latest version of this file is always at:

    http://www.catonmat.net/download/perl1line.txt

litzinger

First, create a couple new folders:

cd ~/
mkdir Scripts
mkdir Screenshots
cd Screenshots
mkdir cron

cd ~/Scripts
vim screencapture.sh

alehano

package main

import (
	"fmt"
)

func decorator(f func(s string)) func(s string) {

	return func(s string) {
		fmt.Println("Started")

ChengLong

# create a 4G swap file at /swapfile
sudo fallocate -l 4G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile

# Make the Swap File Permanent
sudo echo "/swapfile   none    swap    sw    0   0" >> /etc/fstab

# set swappiness to 10

multidis

#!/bin/bash

# setup AWS CLI first
#  http://docs.aws.amazon.com/cli/latest/userguide/cli-chap-getting-set-up.html

# configure AWS CLI (e.g. use IAM role for S3 access)
export AWS_DEFAULT_REGION=us-east-1
export AWS_ACCESS_KEY_ID=IDHERE
export AWS_SECRET_ACCESS_KEY=KeyHere

vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

jasongilman

Atom Clojure Setup

This describes how I setup Atom for an ideal Clojure development workflow. This fixes indentation on newlines, handles parentheses, etc. The keybinding settings for enter (in keymap.cson) are important to get proper newlines with indentation at the right level. There are other helpers in init.coffee and keymap.cson that are useful for cutting, copying, pasting, deleting, and indenting Lisp expressions.

Install Atom

Download Atom

The Atom documentation is excellent. It's highly worth reading the flight manual.

tyrcho

//Values and definitions

val x = 5           // constant, evaluated once
def y = 5           // definition (function), evaluated at each call
lazy val z = 5      // constant with lazy evaluation
var v = 5           // variable, only use when really needed

//Control constructs

if (true) 1 else 2          // conditional _expression_, of type Int