서울의 현재 기온을 표시하는 자바스크립트를 생성하는 bash 스크립트, https://agvim.wordpress.com/2017/07/06/reading-web-data-using-javascript-in-node-js/

temperature.sh

#!/usr/bin/env bash
# Filename: temperature.sh

command -v npm >/dev/null 2>&1 || { echo >&2 "I require npm but it's not installed.  Aborting."; exit 1; }
command -v node >/dev/null 2>&1 || { echo >&2 "I require node but it's not installed.  Aborting."; exit 1; }

cd /tmp

npm install request cheerio

cat > temperature.js << "EOF"
var request = require('request');
request('https://www.accuweather.com/ko/kr/seoul/226081/weather-forecast/226081',
function (error, response, body) {
  const cheerio = require('cheerio')
  const $ = cheerio.load(body);
  console.log($('#current-city-tab > a > span.local-temp').text());
});
EOF

node temperature.js