Hello fellow monks!
I come to you with something that might be super trivial, but I am not sure I know the answer to it:
If you have a file with lines like this: 
id  name
123 john
34  john
567 john
11  peter
899 peter
87  helen

[download]

and you want to keep the first (only the first) record for each of the names that appear on the second column i.e.:
123 john
11  peter
87  helen

[download]

how does it work using the while loop and reading line by line?

In reply to Very basic question while reading a file line by line by Anonymous Monk

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