jexchan

Multiple SSH Keys settings for different github account

create different public key

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "your_email@youremail.com"

jexchan

A Capistrano Rails Guide

by Jonathan Rochkind, http://bibwild.wordpress.com

why cap?

Capistrano automates pushing out a new version of your application to a deployment location.

I've been writing and deploying Rails apps for a while, but I avoided using Capistrano until recently. I've got a pretty simple one-host deployment, and even though everyone said Capistrano was great, every time I tried to get started I just got snowed under not being able to figure out exactly what I wanted to do, and figured I wasn't having that much trouble doing it "manually".

jexchan

开源国内镜像站点

1. ★ 推荐 网易开源镜像站: http://mirrors.163.com/
2. 搜索开源镜像: http://mirrors.sohu.com/
3. 北京交通大学: http://mirror.bjtu.edu.cn/cn/ <教育网荐>
4. 兰州大学: http://mirror.lzu.edu.cn/ <西北高校FTP搜索引擎>
5. 厦门大学: http://mirrors.xmu.edu.cn/
6. 上海交通大学: http://ftp.sjtu.edu.cn/
7. 清华大学: http://mirrors.tuna.tsinghua.edu.cn/

jexchan

%!TEX TS-program = xelatex
%!TEX encoding = UTF-8 Unicode

% 以上设定默认使用 XeLaTeX 编译，并指定 Unicode 编码，供 TeXShop 自动识别

% XeLaTeX 示例

\documentclass[12pt]{article}

% XeTeX 配合 fontspec 可以非常方便的设置字体 

jexchan

// Inertial Bounce - Created by Animoplex: www.animoplex.com
// Original Version: http://www.graymachine.com/top-5-effects-expressions/
// Modified expression for a smoother bounce effect and easier editing. Use this on any property with two keyframes to get a nice bounce effect that is based on velocity of the value change. Perfect for a scale from 0 to 100 or a speedy rotation that needs some extra life. Adjust amp, freq and decay values to tweak the effect. Amp is intensity, freq is bounces per second, and decay is the speed of decay, slow to fast.
// Full Tutorial: https://www.youtube.com/watch?v=653lxeVIyoo

amp = 5.0; freq = 2.0; decay = 4.0;

n = 0;
if (numKeys > 0) {
  n = nearestKey(time).index;

jexchan

Frontend Development

Attention: if you attempt to fork this gist, github will think that you are a spammer and you will have to confirm that you are human with them. Apparantly there are too many links in this list. Also I update it rather frequently (see revisions on the left), so it's probably wise to not fork it anyway.

• Guides
  • Hack Design
  • Designer School
  • TheExpressiveWeb
  • Talks To Help You Become A Better Front-End Engineer In 2013
• Web Development Teaching Materials

jexchan

#定义画多边形函数
import turtle

t = turtle.Turtle() #命名一个简化的名称
t.shape('turtle') #设定小光海龟来画图
# t.speed(0)

def polygon(length, sides):
  for i in range(sides):
    t.forward(length)

jexchan

# ~/.osx — http://mths.be/osx

# root check
if [[ $EUID -ne 0 ]]; then
    echo "################################";
    echo "## YOU ARE NOT RUNNING AS ROOT #";
    echo "################################";
    echo "#";
    echo "# USAGE: sudo $0";
    exit;

jexchan

unbind C-b
set -g prefix C-a
setw -g mode-keys vi

set -s escape-time 1
set -g base-index 1
set -g pane-base-index 1

bind r source-file ~/.tmux.conf \; display "reloaded config file!"

jexchan

Vagrant Setup

This tutorial guides you through creating your first Vagrant project.

We start with a generic Ubuntu VM, and use the Chef provisioning tool to:

• install packages for vim, git
• create user accounts, as specified in included JSON config files
• install specified user dotfiles (.bashrc, .vimrc, etc) from a git repository

Afterwards, we'll see how easy it is to package our newly provisioned VM