Reduce FASTA file name

Question

[Eva_Maria]

I have more than 60000 fasta file and which having long name like

BA000031.2_ID=gene0_Name=VP0001_gbkey=Gene_gene=VP0001_gene_biotype=protein_coding.fasta
BA000031.2_ID=gene8_Name=VP0009_gbkey=Gene_gene=VP0009_gene_biotype=protein_coding.fasta

and I want to change like this

VP0001.fasta
VP0009.fasta

like this for all 60000 files how it possible

Answer 1

[Jean-Karim Heriche]

Use the rename command. Check man rename for available options (rename comes with perl and newer perls have more options).

Answer 2

[Jenez]

I'm sure there's an elegant awk solution out there but here's my somewhat shitty loop for it. It assumes all files keep the same structure as the ones you've posted.

for f in *_coding.fasta; do new="$(echo $f | tr '=' '_' | cut -d '_' -f 5)"; mv $f $new.fasta; done