DBD::CSV. Assuming "foo.csv" and a header line where the first (key) field is c_foo and the header for column 35 is "tel" (untested, but you get the drift):

my $dbh = DBI->connect ("dbi:CSV:", undef, undef, {
    RaiseError => 1,
    PrintError => 1,
    f_dir      => "/test/foo",
    f_ext      => ".csv/r",
    f_encoding => "urf-8",
    });
my $stu = $dbh->prepare ("update foo set tel = ? where c_foo = ?");
my $sth = $dbh->prepare ("select c_foo, tel from foo");
$sth->execute;
$sth->bind_columns (\my ($c_foo, $tel));
while ($sth->fetch) {
    $tel =~ s/^0/+91/ and $stu->execute ($tel, $c_foo);
    }
$dbh->commit;

[download]

Enjoy, Have FUN! H.Merijn

In reply to Re: edit a CSV and "in-place" replacement by Tux
in thread edit a CSV and "in-place" replacement by slayedbylucifer

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