Removing XAMPP from Ubuntu is simple. Follow the following steps:
1. XAMPP gets itself installed in “opt/lampp” directory by default.
2. Stop the XAMPP server by typing sudo /opt/lampp/lampp stop in the Terminal (you can open the terminal by pressing Ctrl+Alt+t).
3. Now type sudo rm -rf /opt/lampp
4. Check your opt directory. The folder “lampp” would have been removed.
5. You have successfully removed XAMPP from your Ubuntu.