Just another way to do it:

my $dna = 'accatgagctgtacgtagcatctgagcgcgcatgactgtgactgacgtaggcagca';
my @windows = unpack 'A3' x length $dna, $dna;
print "@windows";

[download]

Update:Sorry, ignore the above, I read the question too quickly.

dave

In reply to Re: substr help by Not_a_Number
in thread substr help by Anonymous Monk

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