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<<USER>> <<APP>>      change this variables

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# Split the laracroft movie file into 100MB of each.
# This is Mac command. Just remove prefix "g" from "gsplit" will work with linux.

system "gsplit --bytes=100m lara.mp4 lar_vide_"

# Output:  lar_vide_aa .. lar_vide_af

# merge it back to original file

system "cat lar_vide_* > original_lara_yourback.mp4"

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HTTP status code symbols for Rails

Thanks to Cody Fauser for this list of HTTP responce codes and their Ruby on Rails symbol mappings.

Status Code Symbol
1xx Informational
100 :continue
101 :switching_protocols
102 :processing

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Heroku

If you already have heroku account login to account settings. Unfortunatly you need to verify you account with credicard (no charges). I just a verification. Once the account verified, navigate to app settings which you have example.herokuapp.com Click on add domain and enter the following items one by one

*.example.com
http://example.com
www.example.com

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How to setup Heroku Hostname SSL with GoDaddy SSL Certificate and Zerigo DNS
Heroku recently added an exciting new 'Hostname SSL' option.  This option offers the broad compatibility of IP-based SSL, but at 1/5 the price ($20 / month at the time of this writing).  
 
The following tutorial explains how to use Heroku's new 'Hostname SSL' option on your Heroku project.  Before we begin, let's list what we're using here:

    * Heroku Hostname SSL
    * GoDaddy Standard SSL Certificate
    * Zerigo DNS

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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 "[email protected]"

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require 'spec_helper'

describe Pager do
  it 'has a version number' do
    expect(Pager::VERSION).not_to be nil
  end

  it 'does first  useful' do
    recs = [1,3,5]
    rpage = Pager::RandomRecord.new(recs, random: false)

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// CSS
.jst-hours {
  float: left;
}
.jst-minutes {
  float: left;
}
.jst-seconds {
  float: left;
}

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Gem file

gem 'bootstrap-sass', '~> 3.3.6'
gem 'nested_form'` # nested form

application.css -> application.scss

@import "bootstrap-sprockets";
@import "bootstrap";

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$.get("http://ipinfo.io", function (response) {
    $("#ip").html("IP: " + response.ip);
    $("#address").html("Location: " + response.city + ", " + response.region);
    $("#details").html(JSON.stringify(response, null, 4));
}, "jsonp");