How to install Cypress on Linux Operating System

Cypress.sh

#!/bin/sh

#Required dependencies installed on your system
sudo apt-get install libgtk2.0-0 libgtk-3-0 libgbm-dev libnotify-dev libgconf-2-4 libnss3 libxss1 libasound2 libxtst6 xauth xvfb

#Install NodeJS and Yarn
curl -sL https://deb.nodesource.com/setup_14.x | sudo -E bash -
sudo apt-get install -y nodejs
sudo apt-get install gcc g++ make -y
curl -sL https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
sudo apt-get update && sudo apt-get install yarn -y

#Cypress Installation Steps:
# Select a path where Cypress will be installed
mkdir cypress
cd /project/path
or
cd cypress

#Or clone this project:
git clone https://github.com/ether/etherpad-lite.git
cd etherpad-lite

# Run this command. This will install Cypress locally as a dev dependency for your project
npm install cypress --save-dev

#Note: Make sure that you have already run npm init or have a node_modules folder or package.json file in the root of your project to ensure cypress is installed in the correct directory.

#How to run Cypress scripts: If Cypress has now been installed to your ./node_modules directory, with its binary executable accessible from ./node_modules/.bin
./node_modules/.bin/cypress open

OR 

#Run shortcut using npm bin
$(npm bin)/cypress open

OR

#This command is much easier and clearer to add Cypress commands to the scripts field in your package.json file **
npm run cypress:open

#Sample Cypress Script: Filename of the automated script: facebook_login.js

describe('Login to Facebook', function() {
    // ---- Login to Facebook ---- //
    it('login successful', function() {
        cy.visit('https://www.facebook.com/')
        cy.get('input[name="email"]').type('test@example.com')
        cy.get('input[name="pass"]').type('test_pass')
        cy.get('label[id="loginbutton"]').click({ multiple: true, force: true})
        cy.wait(4000)
    });
});

#Adding npm scripts: While there’s nothing wrong with writing out the full path to the Cypress executable each time, it’s much easier and clearer to add Cypress commands to the scripts field in your package.json file.

{
  "scripts": {
    "cypress:open": "cypress open"
  }
}