fishdates.sh

#!/bin/bash

TZ='America/New_York'
URL='http://weather.yahooapis.com/forecastrss?w='
l=2432214 # maui

export $(curl -s "$URL$l" | perl -ne'while(/(sunrise|sunset)="(.*?)"/g) { print "$1=$2\n" }')

if [ "$1" = "sunrise" ] ; then
  TZ=$TZ date --date="TZ=\"HST\" $sunrise am"
elif [ "$1" = "sunset" ] ; then
  TZ=$TZ date --date="TZ=\"HST\" $sunrise pm"
fi