Your script can be done much simpler if you generalize it.

use File::Copy;
use File::Find;

use strict;
use warnings;

### Parse numerical characters and trailing white-space from rmtdb.lrl
+ for matching.
copy("rmtdb.lrl" , "rmtdb.tmp")
    or die "rmtdb.lrl file cannot be copied: $!\n";
system "cat rmtdb.tmp | cut -d ' ' -f1 > rmtdb.tmp1";

my %lines;

for my $file (qw(dblist.comdbg dblist.varldb rmtdb.tmp1)) {
    open my $fh, $file or die "Can't open $file: $!";
    while (<$fh>) {
        chomp;

        # Special case of rmtdb
        $_ = lc $_ if $file eq 'rmtdb.tmp1';
        
        $lines{$_}{$file}++;
    }
    close $fh;
}

foreach my $line (keys %lines) {
    my @files = sort keys %{$lines{$line}});
    next if @files < 2;
    print "$line is duplicated in: " . join(' ', @files) . "\n";
}

### Cleanup
unlink "rmtdb.tmp", "rmtdb.tmp1";

[download]

Then if you want to process 20 files, you can just add them to the loop

In reply to Re: Sting matching by wind
in thread String matching by jwesley

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