Maybe this is what you mean? 
use strict;
use warnings;

my @array = qw(toad frog frig frag crow creep hop);
my @sorted;

for (@array) {
    if ( $_ =~ m/.*r/g ) {
        push( @sorted, $_ );
    }
}
print "$_\n" for sort(@sorted);

[download]
Output: 
creep
crow
frag
frig
frog

[download]
EDIT: Missed the point of this might being a homework assignment. apologies

In reply to Re: How to perform different sorts on multiple sections of items in the same array by james28909
in thread How to perform different sorts on multiple sections of items in the same array by estreb

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