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const source = fs.createReadStream('http://i3.ytimg.com/vi/J---aiyznGQ/mqdefault.jpg');
const dest = fs.createWriteStream('./publico/testeCOPIADO.jpg');
 
source.on('end', () => { console.log('Arquivo movido') });
source.on('error', (erro) => { console.log('Erro ao mover arquivo', erro) });
source.on('close', () => {
    fs.unlink(`${ __dirname }/../teste.txt`, console.log('Arquivo apagado'));
});
source.pipe(dest);