Re: Perl script

[madtoperl]

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";
}

[marto]

OP is not trying to compare the size of two XML files, but the value of dataSize within two XML files. While it doesn't address this problem your example should also check that the files exist before allocating a size to them, e.g. my $filesize2 = 0;.

[Anonymous Monk]

Checking -e first is a bad idea, as it leads to race conditions (the file might be deleted between the -e and -s). Just call -s. If it gives undef, the file doesn't exist.

The OP is so vague that I'm not sure whether "datasize" is a field in the XML or the length of some part of the XML.