"use strict";

var re = /^[a-z]{1}([a-z]{1})/im;

function getEnv(hostname){
    var OK = hostname.match(re);

    if (!OK)
        console.log(`No regex match for ${hostname}`);
    else
        console.log(`Matched: ${OK[0]}`);
}

getEnv( process.argv[2] || 'ldserver01' );