Yes, you can use a MySQL script to delete all non-administrative users from your database. Assuming your users table has a column like role, user_type, or is_admin that distinguishes admin users from regular users, here’s how you can safely delete all non-admins.

SQL Script to Delete All Non-Admin Users

DELETE FROM users
WHERE role != 'admin';

or if your database uses a boolean is_admin column:

DELETE FROM users
WHERE is_admin = 0;

Safety Precautions Before Running the Script

1. Backup your database: Run the following command to create a backup.

   mysqldump -u your_user -p your_database > backup.sql
   

2. Check users before deleting: Run this query first to see which users will be deleted.

   SELECT * FROM users WHERE role != 'admin';
   

   or

   SELECT * FROM users WHERE is_admin = 0;
   

3. Use Transactions for Reversibility:

   START TRANSACTION;
   DELETE FROM users WHERE role != 'admin';
   -- ROLLBACK; -- Uncomment this line if something goes wrong
   COMMIT;
   

Automating This with a Bash Script

If you want to automate the process using a shell script:

#!/bin/bash
mysql -u your_user -p'your_password' -D your_database -e "DELETE FROM users WHERE role != 'admin';"

⚠️ Warning: Storing passwords in scripts is insecure. Use MySQL config files or environment variables for better security.

Final Thoughts

• Make sure your admin users are properly classified before running the script.
• Test on a staging database before running on production.
• If you need more advanced filtering (e.g., deleting users inactive for X days), let me know! 🚀