I've got this script that will read an input file of comma delimited server names, search the servers and determine the specified directory size, and output the result to a csv file. Now my only problem is when the script errors when it can't access a folder due to permissions, it then outputs a size of 0 for that directory. This isn't really correct because the directory might not be empty, it's just that it couldn't be accessed.

What I need to figure out is how to get the script to report "Error" (or something along those lines) in the output, instead of 0. Here is my code: 

use File::Find;
use strict;

my ($dir, @parts);

open(IN, "< input.csv") or die("Couldn't open input.csv\n"); 
open(OUT, "> output.csv") or die("Couldn't open output.csv\n"); 

@parts=split (/,/,<IN>);
#Displays total size of specified path (total includes subfolders)
foreach my $dir (@parts) {
   my $total;
   print "\nWalking $dir\n";
   find(sub { $total += -s }, $dir);
   $total = ($total / 1024) / 1024;
   $total = sprintf("%0.2f", $total);
   print OUT "$dir, $total, mb, \n";
}
print "\n\tOutput created.\n";
close(OUT);

#Displays program syntax on screen
$dir = $ARGV[0];

[download]

Here is an example of the contents of the input file:

\\server\share,\\server\different_share,c:\temp

In reply to File::Find question by Concept99

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.