I'm very new to perl and I am writing a simple utility to ping our company's network. I have the perl script execute the OS ping command and output it to a file. I then read this file and determine if the ping was a success or not. The problem I am having is that when I go to write the results to an array for storage, I don't think the values are actually getting written. Here is the code I have written: 
$baseIP = "10.0.5.";
$j = 1;

until ($j == 255) {
  $string = $baseIP.$j;
  $input = "-w 50 -n 1 ".$string." |find  /V \"Received\" |find /V \"P
+ing\" |find /V \"A\"";
  system("ping $input >> ping.txt");
  $j++;
  print "$j\n";
}

open(RESULTS2, "ping.txt") || die;
open(RESULTS, ">ping.txt") || die;
@results = <RESULTS2>;
close(RESULTS2);
$j = 1;
$a = 0; $f = 0;
while (@results) {
  if (m/Reply/) {
    $output[$j] = $baseIP.$j.": Alive\n";
    $j++; $a++;
  } elsif (m/Request/) {
    $output[$j] = $baseIP.$j.": Dead\n";
    $j++; $f++;
  } else {
  }
}

print RESULTS "Pinger Results:\n\n";
print RESULTS "Alive Nodes: $a\n";
print RESULTS "Dead Nodes: $f\n";
print RESULTS "\n\nDetailed Results:\n";
print RESULTS @output;
close(RESULTS);

[download]
When I examine the results in the ping.txt, I find Alive Nodes is zero, Dead nodes is zero, and there aren't any detailed results... Does anyone see my problem right out?

In reply to Array Problem by wanderinweezard

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.