[cutler]

I specified the use case so why "meaningless"? Here's the code:

    Raku
    for 'logs1.txt'.IO.lines -> $_ { .say if $_ ~~ /<<\w ** 15>>/; }

    Python
    from re import search
    with open('logs1.txt', 'r') as fh:
        for line in fh:
            if search(r'\b\w{15}\b', line): print(line, end='')