Learn how to trigger an AWS Lambda function for S3 file uploads in this comprehensive tutorial. Create a new S3 bucket, set up a Lambda function from scratch, and configure it to execute upon file uploads to S3. Write and execute Lambda code, add function triggers, adjust settings, and upload the code. Grant necessary IAM permissions by editing roles and creating policies. Test the function to ensure proper execution when files are uploaded to S3. Gain practical experience with AWS services and understand how to integrate Lambda with S3 for automated file processing.