Ahmad Hassan ahmadhasankhan

sudo apt-get --purge remove wkhtmltopdf
sudo apt autoremove
sudo apt update

Install Wkhtmltopdf 0.12.5–1

Download Wkhtmltopdf package for Debian 9 from repository,

Remove imagemagick

sudo apt-get --purge remove imagemagick
sudo apt autoremove

Install Required package:

sudo apt-get install build-essential 
sudo apt-get install checkinstall

Install and Setup Nginx+Puma+PostgresSQL on Ubuntu-18

Create Deploy User:

  From the root user 
  $ adduser deploy
  $ adduser deploy sudo
  $ exit

Initialize

gitflow	git
`git flow init`	`git init`
	`git commit --allow-empty -m "Initial commit"`
	`git checkout -b develop master`

Connect to the remote repository

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]"

# 1) If the elements of index i and (i+1) are equal then, double the value at index i
# and replace the element at index (i+1) with 0.
# 
#     2) If the element at index i is 0, then ignore it.
# 
#     3) Any number (element in an array) must be modified only once.
# 
#     4) At the end, shift all the zeros (0s) to the right of the array and remaining
# nonzeros to the left of the array.

	describe 'Expectation Matchers' do

	describe 'equivalence matchers' do

	it 'will match loose equality with #eq' do
	a = "2 cats"
	b = "2 cats"
	expect(a).to eq(b)
	expect(a).to be == b # synonym for #eq

	require 'formula'

	class Imagemagick < Formula
	homepage 'http://www.imagemagick.org'

	url 'http://www.imagemagick.org/download/releases/ImageMagick-6.7.7-10.tar.xz'
	sha256 '85b0f9afe122c52a821001976a4f54ae011bb3d94a87b97e3112e515185731ad'

	head 'https://www.imagemagick.org/subversion/ImageMagick/trunk',
	:using => UnsafeSubversionDownloadStrategy

	class User < ApplicationRecord
	has_many :posts
	has_many :comments

	# id :integer not null, primary key
	# name :string(50) default("")
	end