How to use Node.js File System Module
The Node.js file system module allows you to work with the file system on your computer.
Common use for the File System module:
Read files
Create files
Update files
Delete files
Rename files
Read Files
The fs.readFile() method is used to read files on your computer.
Create Files
The File System module has methods for creating new files:
fs.appendFile()
fs.open()
fs.writeFile()
Update Files
The File System module has methods for updating files:
fs.appendFile()
fs.writeFile()
Delete Files
To delete a file with the File System module, use the fs.unlink() method.
Rename Files
To rename a file with the File System module, use the fs.rename() method.