You can certainly iterate over the other file, but that might be quite slow.

I haven't quite understood how your input format looks like, but it might be possible to throw you data into a database and let it do a JOIN operation.

Or if you have enough memory you could read the second file into a hash and then access it. But without knowing more about the input and desired output it's hard to give a good advice.

In reply to Re: General program and related problems by moritz
in thread General program and related problems by micky744monk

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