Thanks for the links. Those make it pretty clear how it is useful. Although Perl isn't a text editor I seem to be too often.

On one of the slides in the second link I found this interesting regex. s/^/>> /; Another obvious thing I suppose that I didn't know or realize before: that you can substitute something for nothing and therefore insert something at a boundary.

In reply to Re^2: what is the purpose of Tie::File by Lotus1
in thread what is the purpose of Tie::File by Lotus1

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