how to split a fasta file?
This is a recurring question and many answers can be found among many threads in biostars.
I made a mini-review and listed tools best suited for that purpose here: https://github.com/NBISweden/GAAS/blob/master/annotation/knowledge/split_fasta.md
Hoping it can help to choose the appropriate tool depending the task or the coding language wished.
Edit: changed the post from forum to tutorial.