I've created a large (~3 million rows) file. Well it's off by 22 rows from what it should be. In it's creation i exclude carriage returns and line feeds. 
SELECT
...
SUBSTR ( REPLACE ( REPLACE ( memo_system_txt, CHR(10), '' ), CHR(13), 
+'' ), 1, 255 ) AS memo_sys_txt,
...

[download]
But something is getting through. I'd like to find out what. I think it might be a tab character, but I am not sure. So I thought I'd parse through my file and see if I can find it. .... ok, this is where I need help. :) Am I on the right track? 
#!/usr/bin/perl  

use strict;
use warnings;

open F, "memo.txt";
open X, ">memo.txt_error";

my $row;
my $line;

$row = 0;
while (<F>)
        {
        chomp;
        $line = $_;
        $row++;

# Look for any lines of the wrong length
#       if ( length $line != 2340 ) 
#               {
#               printf X "%u : ||%s||\n", $row, $line;
#               }

# Find any control characters
        if ( $line =~ /[[:cntrl]]/ )
                {
                my $c = $1;
                printf X "%u : ||%s||\n", $row, $line;
                printf X "\t : ||%s||\n", ORD($c);
                print X "---------------------------";
                }
        }

close X;
close F;

[download]
Getting: 
printf() on unopened filehandle X at ./a2.pl line 20, <F> line 150.
Can't call method "ORD" without a package or object reference at ./a2.pl line 21, <F> line 150
What did I get wrong? I'd like to find the numeric value (i.e. ORD(tab) is 9) and where in the line the character is located. Thanks for your help. Eric

Edit: g0n - replaced pre tags with code tags

In reply to Searching for control characters by ericdp

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