const fs = require('fs')

let path = process.argv[3] ?? '.'
let optionsArray = process.argv.slice(4) ?? []
let options = []
for(let option of optionsArray){
    if(option.startwith("--")) options.push(option.slice)
    else if(options.startwith("-")) options.push += option.slice(1).split('').map(el => {return '-' + el})
}

const files = fs.readdirSync(path);
const nonHiddenFiles = files.filter(file => file[0] != '.')

console.log(options.includes('-a') ? files.join('  ') : nonHiddenFiles.join('  '))