change duplicate headers to unique headers in multifasta

Question

[goatsrunfaster]

I have a multi-fasta where many sequences have the same header. Something like this:

>Jerry_seinfeld
GCGCGCGCCG
>Jerry_seinfeld
GCGCATATATA
>Jerry_seinfeld
GCGCGATAAA

What I want to do is change the header every time it appears in duplicate, so I get something like this:

>Jerry_seinfeld_1
GCGCGCGCCG
>Jerry_seinfeld_2
GCGCATATATA
>Jerry_seinfeld_3
GCGCGATAAA

Any help is appreciated.

Answer 1

[GenoMax]

See: Add count numbers to headers in a fasta file

Answer 2

[ATpoint]

Please browse biostars, e.g.

Add count numbers to headers in a fasta file or

Fasta header unique sequence or with a bit of imagination you can tweak this one

How do I add ">" symbol to FASTA headers?