The job is very basic and simple. We have a DB containing several million records-
each record is a split .csv file (total around 300 small csv files)
Your job is to
1. Filter entries in the DB (csv file) containing a string that we will provide.
2. Check if that string is valid or not (string = email/website). So basically check if that email/website is valid or not.
3. Filter out the invalid ones and provide us with a list of only valid DB entries.