How to install Magento 2

Magento 2: Install using Composer and Command Line (CLI)

1) Verify System Requirements : Before downlowding magento 2 and installing composer, check magento2 reqirements on : http://devdocs.magento.com/guides/v2.0/install-gde/system-requirements2.html

2) Install Composer :  You need to have composer installed in your system. You can get composer from here http://getcomposer.org and need to follow the mentioned steps of installation.

You can install composer in Ubuntu Linux using the following command:

sudo apt-get install composer

3) Download Magento using Composer : We will create a folder named magento2 and download Magento 2 over there. So, the full path for my magento 2 folder will be /var/www/html/magento2.
Using Composer, download Magento CE edition in your directory:

composer create-project --repository-url=https://repo.magento.com/ magento/project-community-edition /var/www/html/magento2

After running this command, it will ask for username and password for repo.magento.com.

Authentication required (repo.magento.com): Username: Password:

To get the username and password for repo.magento.com, you have to generate access keys from https://marketplace.magento.com/customer/account/

• Go to https://marketplace.magento.com/customer/account/
• After you are logged in, click My Access Keys link
• On My Access Keys page, click on Generate Keys button
• Then, you will see two keys (Public and Private). Public Key will be your username and Private Key will be your password

4) Set proper file permissions : Set write permissions to vendor, app/etc, pub/static, pub/media, and var directories. You can set the permission to all of these folders with the following command:

cd /var/www/html/magento2 && find var vendor pub/static pub/media app/etc -type f -exec chmod g+w {} \; && find var vendor pub/static pub/media app/etc -type d -exec chmod g+w {} \; && chmod u+x bin/magento

5) Switch User : Switch to user which has write permission to your magento2 directory.
Go to your magento2 web root directory:

su your_system_user

6) Install Magento 2 : Go to your magento2 web root directory:

cd /var/www/html/magento2

Specify the base url, database host, database user, database password, admin name, admin email, admin password, default currency, default timezone, etc

sudo php bin/magento setup:install --base-url=http://domain.com/magento2/ \ --db-host=localhost --db-name=magento2 --db-user=root --db-password=root \ --admin-firstname=Magento --admin-lastname=User --admin-email=demo@yourmail.com \ --admin-user=admin --admin-password=admin123 --language=en_US \ --currency=USD --timezone=America/Chicago --use-rewrites=1

You will get the success message after installing along with admin uri.
You may also need to give permissions to var and pub

sudo chmod -R 777 pub var