metar

#!/bin/sh

# use KRNT as default airport unless something else is specified on cli args
if [ -z "$1" ]; then
  AIRPORT="KRNT"
elif [ "$1" == "-h" ] || [ "$1" == "--help" ]; then
  cat << EOF
Usage: metar [airport code]
Example: metar KSEA
More at https://github.com/vsinha/METAR
EOF
  exit 1
else
  AIRPORT=$(awk '{print toupper($0)}' <<< $1)
fi

CURLURL="http://weather.noaa.gov/pub/data/observations/metar/stations/"
CURLURL+=$AIRPORT
CURLURL+=".TXT"

curl --silent $CURLURL | grep $AIRPORT