since your output is already in two xml files, let's say File 1 is one.xml and File 2 is two.xml.
You can do the below. Also there are other ways also available eg. using File::Stat module as well. 
#!/usr/bin/perl
use strict;
use warnings;

my $filesize1 = 0;
my $filesize2 = 0;

if (-e 'one.xml'){
    $filesize1 = -s 'one.xml';
}

if ( -e 'two.xml'){
    $filesize2 = -s 'two.xml';
}

if ( $filesize1 == $filesize2) {
    print "File sizes are equal\n";
}else{
    print "File sizes are not equal\n";
}

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In reply to Re: Perl script by madtoperl
in thread Perl script by namisha

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