To uninstall Nginx on Ubuntu or Debian Linux, you can use the following steps:
Stop the Nginx service:sudo service nginx stop
Remove the Nginx package using the package manager:sudo apt-get remove nginx
Remove the Nginx configuration files:sudo rm -rf /etc/nginx
Remove the Nginx log files:sudo rm -rf /var/log/nginx
Remove the Nginx web root directory:sudo rm -rf /var/www/html
Note that these steps will only remove the Nginx package and its related files. If you have installed any additional packages or made any configuration changes that are not related to Nginx, those changes will not be undone by uninstalling Nginx.
It is also a good idea to double-check the directories and files that you are deleting to ensure that you are not deleting any important data or configuration files.