https://bioinformaticsonline.com/thewire/thread/36029? https://bioinformaticsonline.com/thewire/view/36029 Fri, 23 Mar 2018 10:18:22 -0500 https://bioinformaticsonline.com/thewire/view/36029 #Convert #fasta file to uppercase/lowercase, without altering the annotation line $ awk '{ if ($0 !~ />/) {print toupper($0)} else {print $0} }' name.fasta

]]> Rahul Nayak