I need some help with this, I have written a code which takes in input of multiple files and then it is supposed to process each file and save its output in a seperate file for each, but what is happening is that everytime i run the program it takes the new file created as the input as well. And for example my variable $ip is in the program its defined it just shows up that uninitialised any help on this?

#!/usr/bin/perl -w
use Regexp::Common qw/net/; 
use warnings;
#use strict;
use Regexp::Common qw/net/;
use strict;
use Cwd;

my $mypath=getcwd();
my $mypath=$mypath."/sd";
my $ip;
chdir $mypath;
my @files = <*>;


my $var=0;
my $i = 0;
my $traceroute;
my $line;


foreach (@files) {
  if (-f $_) {
    process ($_);
  }
}

sub process {
  my $file2 = $_[0];
  open my $in, '<', $file2 or die $!;
  open my $out, '>', "$file2.log" or die $!;

while (my $line = <$in>){

             if($line =~ /^Traceroute: .* (\S+)/) {
                   $traceroute = $1;
            #print "$traceroute\n";
            $var++;
            #print "$traceroute\n";
            }
            my ($ip) = $line =~ /(?: \d+ \s \s+) ($RE{net}{IPv4}) /msx
+;
            print "$ip\n";
            
            if($traceroute eq $ip){
            
            print {$out} $ip if defined ;
                if($ip ne undef){
                {$i++;}
                        }
            }
            else {
            }
            }


print  {$out}  "Number of traceroutes - $var\n";
print  {$out} "Number of traceroutes reached destination - $i\n";
my $subs = $var-$i;
print {$out} "Number of traceroutes that did not reaach destination ($
+subs)\n";
my $perc = ($i/$var)*100;
print  {$out} "Percentage of sucessful traceroutes ($perc%)\n";


  # ... your remain code here
}
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