Thanks tooic for your quick reply

No, the input file size is not an issue at all

The idea was to look at each element of the first column, and for each of these elements, to browse through the whole elements of the second column

Are you saying that @MY_ELEMNTS = <INFILE> could work ?

In reply to Re^4: finding the right corresponding element by steph_bow
in thread finding the right corresponding element by steph_bow

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