I have a task that requires me to sort several files by 3 numbers in the file name. What I have so far is a sort by a single number (run).
Question : How can I sort by 3 numbers 
#!/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 t
+otal
#             |                                            |    |  |
#ASR0004994_8958_ETSTexas_EOC052017P_0517_Candidate_RRD_178901_02_04_S
+pr17_Initial_201705040951_41043.zip

my @files = qw( 
    ASR0005336_8950_ETSTexas_EOC052017P_0517_Candidate_RRD_178904_01_0
+2_Spr17_Initial_201705040952_41044.zip
    ASR0004520_8960_ETSTexas_EOC052017P_0517_Candidate_RRD_178901_04_0
+4_Spr17_Initial_201705040952_41045.zip 
    ASR0004994_8958_ETSTexas_EOC052017P_0517_Candidate_RRD_178901_02_0
+4_Spr17_Initial_201705040951_41043.zip
    ASR0005336_8950_ETSTexas_EOC052017P_0517_Candidate_RRD_178904_02_0
+2_Spr17_Initial_201705040952_41044.zip
    ASR0005154_8957_ETSTexas_EOC052017P_0517_Candidate_RRD_178901_01_0
+4_Spr17_Initial_201705040951_41042.zip
    ASR0005336_8959_ETSTexas_EOC052017P_0517_Candidate_RRD_178901_03_0
+4_Spr17_Initial_201705040952_41044.zip
    ASR0005336_8972_ETSTexas_EOC052017P_0517_Candidate_RRD_178902_01_0
+1_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;

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In reply to Sorting files by 3 numbers in the name by crusty_collins

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