https://gist.github.com/jxson/963339/33a0623a000334aa0ab97def069c3902a1212f6c

해당 URL을 참조하여, 아래의 js를 실행하였으나, 에러가 발생하네요
해당 문젬점 해결을 위하여, 조언 부탁 드려 봅니다.
감사합니다.

----- 실행 화면 (에러 발생)

❯ bitly http://www.naver.com
/opt/homebrew/bin/bitly.js:3
        link = process.ARGV[2],
                           ^ # <======================================== !!!

TypeError: Cannot read properties of undefined (reading '2')
    at Object.<anonymous> (/opt/homebrew/bin/bitly.js:3:22)
    at Module._compile (node:internal/modules/cjs/loader:1218:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1272:10)
    at Module.load (node:internal/modules/cjs/loader:1081:32)
    at Module._load (node:internal/modules/cjs/loader:922:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:82:12)
    at node:internal/main/run_main_module:23:47

Node.js v19.3.0

----- 전체 코드

❯ \cat /opt/homebrew/bin/bitly.js
var request = require('request'),
        sys = require('sys'),
        link = process.ARGV[2],
        bitly = 'http://api.bit.ly/v3/shorten';

function urlencode(str) {
return escape(str)
    .replace('+', '%2B')
    .replace('%20', '+')
    .replace('*', '%2A')
    .replace('/', '%2F').replace('@', '%40');
}

// prepend http if it does not exist.
if (!/^https?:\/\//i.test(link)) {
    link = 'http://' + link;
}

// urlencode the link and add to params.
var params = 'login=YOUR_LOGIN_ID&apiKey=YOUR_API_KEY&longUrl='+urlencode(link)+'%2F&format=json';

request({uri:bitly, body:params, method:'POST'},function(error,response,body){
    if(!error && response.statusCode === 200 && body)
    {
        var json = JSON.parse(body);
        console.log(json.data.url);
    }
});