Ok, I see. I forgot a few basic things here. Again, this code prints duplicate and incrementing values contained in the print statement.Here's the revised code: 

use strict;
use File::Find;


my %slots = ();
my @diaglist;
my $directory = "/path/to/directory/that/I/want/to/traverse";

find(\&diag, $directory);

sub diag {
  
  @diaglist = `cat $_ |grep SLOT`;
  my  $device = $_;
  foreach $rtr_diag(@diaglist) {
      unless  ($rtr_diag =~ m/Clock|Switch|Power|Processor/) {
      push @{$slots{$device}}, $rtr_diag;
  }
  }
      foreach  $device (sort keys %slots) {
          my $diag_string = join "", @{$slots{$device}};
          
          print "$device:\n";
          print "===========================\n";
          print "$diag_string\n\n";
      
  }
}

[download]

In reply to Nest/Loop/Print - update by Limo

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.