60 lines
1.3 KiB
Shell
60 lines
1.3 KiB
Shell
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#!/bin/sh
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# Globals
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URL="https://forecast.weather.gov/zipcity.php"
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ZIPCODE=46556
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FORECAST=0
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CELSIUS=0
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# Functions
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usage() {
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cat 1>&2 <<EOF
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Usage: $(basename $0) [zipcode]
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-c Use Celsius degrees instead of Fahrenheit for temperature
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-f Display forecast text after the temperature
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If zipcode is not provided, then it defaults to $ZIPCODE.
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EOF
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exit $1
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}
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weather_information() {
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# Fetch weather information from URL based on ZIPCODE
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curl -sL "$URL?inputstring=$ZIPCODE"
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}
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temperature() {
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# Extract temperature information from weather source
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if [ $CELSIUS -eq 0 ]; then
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weather_information | grep -Eo '\-?[0-9]{1,3}°F<' | sed 's/°F<//'
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else
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weather_information | grep -Eo '\-?[0-9]{1,3}°C<' | sed 's/°C<//'
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fi
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}
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forecast() {
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# Extract forecast information from weather source
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weather_information | grep -Eo '"myforecast-current">.*?<' | sed 's/"myforecast-current">//g; s/<//g; s/^[[:space:]]*//; s/[[:space:]]*$//'
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}
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# Parse Command Line Options
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while [ $# -gt 0 ]; do
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case $1 in
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-c) CELSIUS=1;;
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-f) FORECAST=1;;
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-h) usage 0;;
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*) ZIPCODE=$1;
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esac
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shift
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done
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# Display Information
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echo "Temperature: $(temperature) degrees"
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if [ $FORECAST -eq 1 ]; then
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echo "Forecast: $(forecast)"
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fi
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