#!perl -w
use strict;
use Text::CSV_XS;
use IO::File;
my $csv   = Text::CSV_XS->new( {binary=>1} );
my $fh    = IO::File->new('myfile.csv');
my $count = 0;
while (my $cols = $csv->getline($fh)) {
    last unless @$cols;
    print ++$count . ". @$cols\n";
}

[download]
update Or, to create your file #3 from files #1 and #2, I'd do: 
#!perl -w
use strict;
use DBI;
my $dbh=DBI->connect("dbi:CSV(RaiseError=1):csv_eol=\n");
$dbh->{csv_tables}->{tbl1}->{file}='tmp.csv';
$dbh->{csv_tables}->{tbl2}->{file}='tmp2.csv';
$dbh->{csv_tables}->{tbl3}->{file}='combined.csv';
$dbh->do("CREATE TABLE tbl3 AS SELECT * FROM tbl1 NATURAL JOIN tbl2");

[download]

In reply to Re: Question about text::csv_xs by jZed
in thread Question about text::csv_xs by Thargor

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.