#!/bin/bash umask 022 ID="$1" if [[ -z $1 ]]; then echo "no ID supplied" exit fi ALTS="12192" if [[ -n $2 ]]; then ALTS="$2" fi instance="" if [[ -n $3 ]]; then instance="-$3" fi wget -nv -O "/usr/local/share/tar1090/html${instance}/upintheair.json" "http://www.heywhatsthat.com/api/upintheair.json?id=${ID}&refraction=0.25&alts=${ALTS}"