#!/usr/bin/perl

# http://perlmonks.org/?node_id=1191282

use strict;
use warnings;
use Data::Dumper;

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
    );

# sort by pseudo-column with stable sort -- IBM card sorters forever !!!

my @returnfiles = 
  sort { (split /_/, $a)[1] <=> (split /_/, $b)[1] }
  sort { (split /_/, $a)[7] <=> (split /_/, $b)[7] }
  sort { (split /_/, $a)[8] <=> (split /_/, $b)[8] }
  sort { (split /_/, $a)[9] <=> (split /_/, $b)[9] }
  @files;

print Dumper \@returnfiles;