I extracted genes from prokka .ffn file. I found copies of gene sequences, but the ID differs. I wanted to know how I could change the ID of each of the ???
example I did to replace (.fasta_*_) with (_) :
>2549870-Q2398_S6.fasta_00234_Adenylate_kinase
sed -i 's:.fasta_*******_:_:g'
>2549870-Q2398_S6_Adenylate_kinase
my question: with which character do I replace the stars for you to recognize any number?
thank you in advance
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written
by
AbdelAbdel •
1 answer
You can replace the * with [0-9] which is a character class for digits only.
Depending on whether there are always 5 or not, you might want to use [0-9]{5} or perhaps even just any number of digits between those underscores ([0-9]+). We don't know how consistent your files are going to be though so its impossible to say which you need as the right balance of strictness versus 'sensitivity'.
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