#!/usr/bin/perl
use strict;
use warnings;
use Data::Dumper;

# sort by run then by dist then by copy then by total 
#             run                                      district copy total
#             |                                            |    |  |
#ASR0004994_8958_ETSTexas_EOC052017P_0517_Candidate_RRD_178901_02_04_Spr17_Initial_201705040951_41043.zip

my @files = qw( 
    ASR0005336_8950_ETSTexas_EOC052017P_0517_Candidate_RRD_178904_01_02_Spr17_Initial_201705040952_41044.zip
    ASR0004520_8960_ETSTexas_EOC052017P_0517_Candidate_RRD_178901_04_04_Spr17_Initial_201705040952_41045.zip 
    ASR0004994_8958_ETSTexas_EOC052017P_0517_Candidate_RRD_178901_02_04_Spr17_Initial_201705040951_41043.zip
    ASR0005336_8950_ETSTexas_EOC052017P_0517_Candidate_RRD_178904_02_02_Spr17_Initial_201705040952_41044.zip
    ASR0005154_8957_ETSTexas_EOC052017P_0517_Candidate_RRD_178901_01_04_Spr17_Initial_201705040951_41042.zip
    ASR0005336_8959_ETSTexas_EOC052017P_0517_Candidate_RRD_178901_03_04_Spr17_Initial_201705040952_41044.zip
    ASR0005336_8972_ETSTexas_EOC052017P_0517_Candidate_RRD_178902_01_01_Spr17_Initial_201705040952_41044.zip
    );

# this sorts by the run number
my @returnfiles = sort { ( $a =~ /^[^\d]*\d+_(\d{4})/ )[0] <=> ( $b =~ /^[^\d]*\d+_(\d{4})/ )[0]  } @files ;

print Dumper @returnfiles;