Please read the comments at the top.

gistfile1.sh

#!/bin/bash
#
# This script prints the current temperature of a city(by zip code) by going to
# the weather channel homesite and filtering the div container called "current temp:"
# This is a modified script file from a course website.
#

ZIP=$1
URL_WEATHER="http://www.weather.com/weather/today/"$ZIP
#echo $URL_WEATHER
curl $URL_WEATHER > temp.tmp 2> err
#cat temp.tmp
STR1="<div class=\"wx-temperature\">"
STR2="<span itemprop=\"temperature-fahrenheit\">"


#echo $STR1
#echo `cat temp.tmp'
`cat temp.tmp | grep "$STR1" > temp2.tmp`
`cat temp2.tmp | grep "$STR2" > temp3.tmp`
`sed "s/<[^0-9]*>//" temp3.tmp > 1.tmp`
`sed "s/<.*//" 1.tmp > 2.tmp`
TEMP=`head -1 2.tmp`

rm -f 1.tmp
rm -f 2.tmp
rm -f temp.tmp
echo "The current temperature is "$TEMP"F"