Install PHP 7.3 on Linux
Install Apache 2 server
sudo apt install apache2
Install MySQL Server
sudo apt install mysql-server
sudo apt install apache2
sudo apt install mysql-server
Create a Drupal 9 project with composer
If uou have a message like : Add Phpunit via composer
CAUTION : PHPunit Version >= 8 is not compatable with drupal, so use the 7
composer require --dev phpunit/phpunit:7
docker system prune
Note : If you are on Docker 17.06.1 or higher and want to also prune volumes, add the --volumes flag:docker system prune --volumes
dd is a basic command une in all linux distributions to copy data. You can also use this feature to test dis performance.