You need to identify the lines without * to let those pass through. Then loop over the network list but use a copy of the line in the substitution each time

#!perl
use strict;
my @finalnwlist = qw(
  192.169.32.0/255.255.255.0
  192.169.72.0/255.255.255.0
  192.169.73.0/255.255.255.0);

replace_exports('exports.txt');
          
sub replace_exports {

  my $filename = shift;
  open IN,'<',$filename 
       or die "Error opening $filename for read : $!";
  my @lines = <IN>;
  close IN;

  open OUT, '>', 'chg_'.$filename
       or die "Error opening $filename for write : $!";
       
  for (@lines) {
    chomp;
    if (m/\*/){
      print "Change $_\n";
      for my $nw (@finalnwlist){
        my $copy = $_;
        $copy =~ s/\*/$nw/;
        print OUT $copy."\n";
      }
    } else {
      print OUT $_."\n";
    }
  }
  close OUT
}
[download]

I cannot hardcode the @finalnwlist value as I said it will vary on different machine. This gets input from xml file. nor I can hardcode @lines with exports permission as you have done here.

You don't have to :)

You're struck, and the key to getting unstuck

Starting a new file, with minimal amount of code and minimal amount of hardcoded data like Re: Replace an asterisk '*" with the content of array

Then simply explain what that program should do using as many words as you possibly can without copy/paste

Please do this in the next minute and post what you get

The script should check each line

I see you have that in the program foreach(@lines)

replace '*' with each of the subnet value and should do the same for all the subnets for all the shares

this part needs more clarity / explanation and comparison to the code in Re: Replace an asterisk '*" with the content of array

Well :) I gotta go so I'll leave you with my thinking :D
Read more... (793 Bytes)

So asterix line, is duplicated for each subnet, and in each duplicate the asterix is replaced with the current subnet

Call me Teddy Bear ;)

Thanks for looking into my script, I got it was I was looking for, the script was good with few mistakes but the main problem was that my array was treating the complete list of ip and subnets as 1 element so had to split them and everything worked out fine

final script

my @finalnwlist = split (/\n/, join (' ', @networklist, @brnwlist, @vn
+wlist));


my @entries;
sub update_exports {

        my $exports = 'exports';
        open (EXPORTS,"<exports") ||die "Error opening exports file";
        my @lines = <EXPORTS>;
        close (EXPORTS);

        open (TMP_EXP, ">> exports_tmp") || die "File not found";

        foreach $a (@lines) {

            if ( $a =~ m/\*/) {
                logmsg "Generating unrestricted entry..";
                my ($share, $permission) = split (/\*/, $a);
                for my $b (@finalnwlist) {
                        @entries = join ('', $share, $b, $permission) 
+;
                        print TMP_EXP @entries;
                }
            }
            else {
                print TMP_EXP $a;
            }

        }
        close(TMP_EXP);
}
[download]