Okay, I see your problem. You have potentially two records for each user - one containing a telephone number, and the other a fax number, yes?

This means that you really can't print each line as you iterate, because you need to gather both numbers. One approach to this problem may be to use a hash. Something like the following may work: 

my %users;
while (<CSV>) {
    next if ($. == 1);
    if ($csv->parse($_)) {
        my @columns = $csv->fields();
        my @choppedcols = $csv->fields();
        
        my $username =  lc($columns[1]);
        $users{$username}{first_name} = ($columns[2]); 
        $users{$username{last_name} = ($columns[3]);
        # etc... then
        my $telephone = ($columns[8]).-($columns[6]);
        if ($columns[8] == 1) {
            $users{$username}{fax_number} = $telephone;
        }
        else {
            $users{$username}{phone_number} = $telephone;
        }
    }
}

[download]
And then... 
for my $user (keys %users) {
    print "dn: uid=$user\n",
        "givenName: $users{$user}{first_name}\n",
        "sn: $user{$user}{last_name}\n",
        #etc...
        "telephonNumber: $users{$user}{phone_number}\n",
        "faxNumber: $users{$user}{fax_number}\n";
}

[download]

Cheers,
Darren :)

In reply to Re^3: Manipulating Data by a Field Identifier by McDarren
in thread Manipulating Data by a Field Identifier by rycher

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.