The previous answers seem to address the question asked. The code has many more issues and, as presented, does not run. There are many improvements that could be made, I’m just presenting a minimally cleaned up version of the code, in case that may be of help to the person who asked.

I wonder if this is a practice project from an old Perl course. It’s dated, but was fun to play with.

use strict;
use warnings;

my @cmdoutput = (
'  Interface                   IHQ       IQD       OHQ       OQD      
+RXBS      RXPS      TXBS      TXPS      TRTL',
'---------------------------------------------------------------------
+--------------------------------------------',
'* GigabitEthernet0/0/0          1         0         0         0    11
+5000       111    143000        81         0',
'* Gi0/0/0.15                    -         -         -         -      
+   -         -         -         -         -',
'* Gi0/0/0.999                   -         -         -         -      
+   -         -         -         -         -',
'* GigabitEthernet0/0/1          0         0         0         0     9
+1000        32         0         0         0',
'* GigabitEthernet0/0/3          0         0         0         0    16
+2000       168   2206000       212         0',
'* GigabitEthernet0/1/1          0         0         0         0   485
+0000      1005   9590000      1153         0',
'* GigabitEthernet0/1/4          0         0         0         0   210
+5000       200    136000       155         0',
'* Te0/3/0                       0         0         0         0  1013
+4000      1480   4448000       843         0',
);

my %interface_bytes;

foreach my $summary (@cmdoutput) {
  chomp($summary);
  $summary =~ s/\s+/ /g;
  my $Star = 0;
  my $Intf = 0;
  my $IHQ  = 0;
  my $IQD  = 0;
  my $OHQ  = 0;
  my $OQD  = 0;
  my $RXBS = 0;
  my $RXPS = 0;
  my $TXBS = 0;
  my $TXPS = 0;
  my $TRTL = 0;

  my $Track = "";

  my $rec = "Sasquatch";

  # remove extra spaces
  my $fields = () = $summary =~ /[\s+,:]/g;
  
  #   Debug if records are not processing correctly
  #     print "Record contains $fields fields\n";
  if ( $fields == 0 ) {
    print "No fields\n";
    next; 
  } elsif ( $fields == 10 ) {
    ( $Star, $Intf, $IHQ, $IQD, $OHQ, $OQD, $RXBS, $RXPS, $TXBS, $TXPS
+, $TRTL )
      = split( ' ', $summary ); 
    if    ( $Star ne "*" )  { next; }
    elsif ( $RXBS =~ /\D/ ) { next; }
    elsif ( $TXBS =~ /\D/ ) { next; }
    else {
      $Track = join "<<-", $rec, $Intf;
      $interface_bytes{$Track} += $RXBS;
      $Track = join "->>", $rec, $Intf;
      $interface_bytes{$Track} += $TXBS;
    } 
    
  } else {
    print STDERR
"Danger Will Robinson - my sensors detect an invisible hole that may c
+onsume you\n";
  }
  
}

my $key    = "";
my @keys   = ();
my $lastid = 4;

# sort by value and put the keys in an array (Ascending sort)
@keys =
  sort { $interface_bytes{$a} <=> $interface_bytes{$b} } keys %interfa
+ce_bytes;

# foreach $key ( @keys[ 0 .. $lastid ] ) {
foreach $key (@keys) {
  if ( not defined $key ) { next; }

  #     printf("%-45s %-6d\n","\t".$key,$interface_bytes{$key});
  #     my $number = $interface_bytes{$key};
  #     $number =~ s/(\d)(?=(\d{3})+(\D|$))/$1\,/g;
  #     printf("%-20s %-8s\n",$key,$number);
  printf( "%-10s %-6s\n", "\t" . $key, $interface_bytes{$key} );
}

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In reply to Re: Sort never returns data in right order by stall
in thread Sort never returns data in right order by jsmith118

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