There are a lot of details in the [File System API][1]. The most common way is: ``` const fs = require('fs');
fs.writeFile("/tmp/test", <buffer>, function(err) {
if(err) { return console.log(err); }
console.log("The file was saved!"); }); ```

[1]: http://nodejs.org/docs/latest/api/fs.html

There are a lot of details in the [File System API][1]. The most common way is:
<!-- language: lang-js -->
const fs = require('fs');
fs.writeFile("/tmp/test", "Hey there!", function(err) {
if(err) { return console.log(err); } console.log("The file was saved!"); });
[1]: http://nodejs.org/docs/latest/api/fs.html