Off topic:how to convert fasta format to certain format

Question

[yangzituo]

Dear All, I'm new here. When I deal with my small RNA-seq data, I want to remove non-mirna seq. So, i blast my clean reads to rfam and get trna and rrna, now I meet some problem when I change my data format. Now my fasta data is like:

>seq1

ATATATATAT

>seq2

CGCGCGCGC

But I want to convert it to

>seq1 ATATATATAT

>seq2 CGCGCGCG

which have two column so that this format can be easy to remove certain sequence in R.

Anyone can help me?

Thanks a lot!!