I'd recommend a Python solution (I don't know what you're currently using):

import re



re_find_data = re.compile(r'^(d+)s+(d+)s+(S+)s+(d+)s+(S+)s+(d+)$')



for line in open(r'/path/to/file'):

    for match in re_find_date.findall(line):

        print(match)

        # Do something with 'match'



        # You can index the 'match' tuple like so:

        print(match[2])

        # Print 3rd part (name)

Regarding grep

I'm not sure grep can be used in this case. It lacks the ability to print specific numbered groups, which is what you need (I believe). I'd be interested to hear if your professor (or anyone else) has a solution with pure grep.

This Regex should work, but you'd need to extract the fields you want from the numbered groups (demonstrated in Python example):

(d+)s+(d+)s+(S+)s+(d+)s+(S+)s+(d+)

grep is just not the right tool. A Regex is, but under a different implementation (hello, Python!).