"How do I use the map command for this?"
"I am pretty sure I need to use the map command"

The map statement is just a short-hand way of writing a simple "for" loop.
ALL map's can be expressed as "for" (foreach) loops.
Perl generates the same code for a "map" as the equivalent "foreach" loop.

map{} is not your issue.

I think looking at Bio::Perl will lead to some suggestions for you. There are many routines optimized for the FASTA format.

In reply to Re: How do I use the map command for this? by Marshall
in thread How do I use the map command for this? by Anonymous Monk

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