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#!/usr/bin/perl use strict; ... print CSV join ",",@numbers; print CSV $/; }
nph>time cat numbers.csv | perl -nle'@d=split /,/;$a[$_]+=$d[$_] for ( +0..4);END{print join "\t", @a}' 249959157 249671314 249649377 250057435 249420 +634 ... real 0m6.45s user 0m5.91s sys 0m0.07s