Hello Computer Gurus!

I have a little scripting task which I kindly request your advice.

I have a series of files : a1.txt, a2.txt, ... a10000.txt

Each file is straight text, no carriage returns, no spaces, etc.

I would like to create a script to add 

>filename [newline]

[download]
to the beginning of each file, and a newline to the end of each file.

For example,

filename: a36.txt
initial filecontents :

AATGACGTACGTAGTCGTAGCGT

[download]
after script filecontents : 
>a36.txt
AATGACGTACGTAGTCGTAGCGT
[newline]

[download]
I do not yet have enough experience with scripts (awk, sed, perl) to make this easily, but I'm sure it should be.

Thank you very much !

update (broquaint): added formatting

In reply to very basic, just beginning by MiamiGenome

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