How to extract multiple header from fasta file

Question

[fongsiongshawn]

Pls help, anyone know how to extract multiple header from a fasta file using perl?

[Farbod]

Dear fongsiongshawn, Hi

Is there any help here for you?

~ Best

[Pierre Lindenbaum]

what have you tried ? show us the code

[biocyberman]

It's good that you've to this forum to ask, but in many cases, try upgrade your googling skill. Your exact question has been answered in the thread mentioned by Farbod

Answer 1

[mastal511]

If you want all of the header lines, you can just use linux:

grep  '^>'  sequences.fasta   >  headers.txt

Answer 2

[David Langenberger]

Not perl, but maybe a much simpler way: Create a blast db of your fasta file and use blastdbcmd.

Explained here