How to add line breaks before each ">" header line in fasta file

Question

[buhbs]

Hello, I have a big fasta file with hundreds of sequences. In some cases the fasta sequences do not have line breaks between them. I would like to add a line break before each header.

For example, right now it looks like this:

">name ATCGCTGCGAT>name2 ATATCGTGA"

And I want it to look like this:

">name ATCGCTGCGAT"

">name2 ATATCGTGA"

Thank you for any help!

Answer 1

[Marco Pannone]

sed 's/>/\n&/g' file

[buhbs]

This worked perfectly! Thanks

[Pierre Lindenbaum]

that will work ... most of the time :-D

https://nsaunders.wordpress.com/2014/08/14/looking-for-in-all-the-wrong-places/

> dbj|AB047520.1| Homo sapiens gene for PER3, exon 1, 128+22(G->A) 
> gb|AF134414.1|AF134414 Homo sapiens B-specific alpha 1->3 galactosyltransferase (ABO) mRNA, ABO-*B101 allele, complete cds