Thanks for editing! :)

> is a greedy match

That's not the accurate term, it's just a multiple match and you only want the last one.°

One way to achieve this in a one-liner is not to print all the matches but to store them in an array and to only print the last match in an END{} block.

The difficulty here is to always reset the array for previous matches.

> Note this is extremely large file and can't put the whole file into a string.

In this case it might be better to go reverse and read a sliding window from the end.

But I don't know how to do this with a one-liner.

To decide this one needs to know how "large" is "extreme" ?

°) I think I misunderstood your problem, see Re: command line perl command to get between lines with non greedy match for another approach.

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