This one uses only a temp scalar and a hash: 
use strict;

my $string = shift;
my %seen;
map {
   my $temp = $string;
   substr $temp, $_, 1, "";
   print "$temp\n" unless $seen{$temp}++;
} (0..(length $string) - 1);

[download]
-Mark

In reply to Re: List of substrings by kvale
in thread List of substrings by YuckFoo

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