Map fasta headers based on sequence match

Question

[arunprasanna83]

Hello,

I am looking for a tool to do the following: I have two fasta files with same sequence content, but the headers have been named differently by different sources.

File1:

>head1

examplesequence

>head2

anothersequence

File2: >seq1

examplesequence

>seq2

anothersequence

I need to match the sequence and map the header names. Is there a way other than BLAST ?

Thanks,

AP

[Joe]

If the strings are exactly the same as you say, you can do it with simple string matching.

[Pierre Lindenbaum]

is it the very same sequence ? if so, similar questions have been asked a gazillion of times on biostars.org