From afc7689e9654c81cb65f3afe3088c3df7e3656d9 Mon Sep 17 00:00:00 2001
From: Luke Bratch <luke@bratch.co.uk>
Date: Mon, 13 Feb 2023 12:12:47 +0000
Subject: Initial commit.

---
 metar.sh | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100755 metar.sh

diff --git a/metar.sh b/metar.sh
new file mode 100755
index 0000000..88b3ff4
--- /dev/null
+++ b/metar.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+
+read ICAO
+
+if ! echo "$ICAO" | grep -Eq "^([A-Z]|[a-z]){4}$" ; then
+  echo "error: invalid ICAO code!"
+  exit 1
+fi
+
+xmllint --xpath 'string(/response/data/METAR/raw_text)' <(curl -s "https://www.aviationweather.gov/adds/dataserver_current/httpparam?dataSource=metars&requestType=retrieve&format=xml&stationString=$ICAO&hoursBeforeNow=1") | head -n1
+
-- 
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