const fs = require('fs');
const path = require('path');

const folder = '/home/elex/nodeTest';


try {
    if (!fs.existsSync(folder)) {
        fs.mkdirSync(folder);
    }
} catch (error) {
    console.error(error);
}


let ls = fs.readdirSync(folder)
    .map((filename) => {
        return path.join(folder, filename);
    });
console.log(ls);

// with a filter
let ls2 = fs.readdirSync(folder)
    .map((filename) => {
        return path.join(folder, filename);
    }).filter((filename) => {
        return fs.lstatSync(filename).isFile();
    });
console.log(ls2);


// a folder exists and has a permission
fs.accessSync(folder)

// rename
fs.rename('/home/elex/nodeTest/새 텍스트 파일', '/home/elex/nodeTest/test.txt', (error) => {
    console.error(error);
});

// delete a folder
fs.rmdir(folder);