Concatenating two strings is done with the . operator:

my $concatenated = $left_field . $right_field;

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To give you more specific advice, can you please show us what code you already have and where it fails to do what you need?

Maybe perlfaq4 on arrays has some hints for a good approach.

For reading a CSV file, please use Text::CSV_XS.

In reply to Re: Combining two fields of a CSV file by Corion
in thread Combining two fields of a CSV file by pdahal

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