fasta格式转换

fasta 和\t 互相转换

#1. fasta 转\t

awk '$0 ~/>/ {print $0}' file.fa >name.txt

awk '$0 ! ~/>/ {print $0}' file.fa >seq.txt

paste name.txt seq.txt >file_tab.txt

#2. \t 转 fasta

awk '{print $1"\n"$2}' file_tab.txt >file_fa.fa

#或者

awk 'BEGIN{OFS="\n"} {print $1,$2}' file_tab.txt >file_fa.fa