daiqizhi
while :; do wget --recursive --page-requisites --adjust-extension --span-hosts --convert-links --domains ftp.ncep.noaa.gov --no-clobber --accept 'gfs.*.pgrb2b.0p25.*' -w 1 --no-parent https://ftp.ncep.noaa.gov/data/nccf/com/gfs/prod/gfs.$(date -d '1 days ago' "+%Y%m%d")/; sleep 1d; done
