in reply to Extract portion of string based on string separator
Not related to your question, just to my bugbear---people using regex for trivial operations.
Regexes are complicated machines with significant overhead. Using one to prepend a character irritates. It's like using a 747 to get milk from teh corner store.
How about doing something like ...
my $y = '/' . join '/', @foo );
Maybe I should change my nick to GrumpyOldMan ... my friends can call me GOM
Tom
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TTTATCGGTCGTTATATAGATGTTTGCA
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