Completely remove MongoDB and its data from Ubuntu OS

To completely remove MongoDB and its data from your Ubuntu system, follow these steps:

1. Stop the MongoDB Service: Ensure that the MongoDB service is stopped:

sudo systemctl stop mongod

2. Uninstall MongoDB Packages: Remove all MongoDB packages from your system:

sudo apt-get purge mongodb-org*

3. Remove MongoDB Data and Log Files: Delete the MongoDB data directory and log files:

sudo rm -r /var/log/mongodb
sudo rm -r /var/lib/mongodb

4. Remove MongoDB User and Group (Optional): If you no longer need the MongoDB user and group, you can remove them:

sudo deluser mongodb
sudo delgroup mongodb

5. Update the Package Database: Update the package database to ensure that all changes are recognized by the system:

sudo apt-get update

6. Remove Unused Dependencies: Clean up any unused dependencies:

sudo apt-get autoremove

7. Verify Removal: Confirm that MongoDB has been completely removed:

dpkg -l | grep mongodb

By following these steps, you should be able to completely remove MongoDB and its associated data from your Ubuntu system. If you encounter any issues or need further assistance, feel free to ask!