Linux获取fasta格式的序列长度

txt情况

awk '/^>/{if (l!="") print l; print; l=0; next}{l+=length($0)}END{print l}' XXX.txt

fasta情况

awk '/^>/{if (l!="") print l; print; l=0; next}{l+=length($0)}END{print l}' XXX.fasta