python-metar/misc/getcycle at main · python-metar/python-metar · GitHub

executable file

42 lines (36 loc) · 875 Bytes

#!/bin/sh

BASE_URL="http://weather.noaa.gov/pub/data/observations/metar/cycles"

ALL_CYCLES="00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23"

usage () {

echo "Usage: $0 [-a|-all] <cycle> [ <cycle> ... ]"

exit 1

}

date=`date -u '+%y%m%d'`

hour=`date -u '+%H'`

cycles=""

while [ "$#" -gt 0 ]; do

case $1 in

-a|-all)

cycles=$ALL_CYCLES

shift;;

-*)

echo "unrecognized option: $1"

usage;;

[0-9]*)

cycles="$cycles $1"

shift;;

esac

done

if [ -z "$cycles" ]; then

usage

for name in $cycles; do

if [ "$name" -lt "$hour" ]; then

file="${date}-${name}Z.TXT"

else

file="${date}Y-${name}Z.TXT"

echo "Downloading observations for cycle $name into $file"

curl -s -S -R "$BASE_URL/${name}Z.TXT" | grep "^[A-Z]" > "$file"

done

Expand file tree