Node.js File System Module

### Include the module:
`const fs = require('fs');`

### Read File
`fs.readFile({fileName}, function(err, data){

}`

### Create File (will append to file if already exists, else create)
```fs.appendFile({newFileName}, <strSomeContent>, function(err){
  if (err) throw err;
  console.log('saved');
});```

### Open File
```fs.openFile({newFileName}, 'w', function(err, file){
  if (err) throw err;
  console.log('saved');
});```

### Write File  (will overwrite file if already exists, else create)
```fs.writeFile({newFileName}, <strSomeContent>, function(err){
  if (err) throw err;
  console.log('saved');
});```

### Delete File
fs.unlink({fileName}, function (err) {
  if (err) throw err;
  console.log('File deleted!');
});

### Rename File
fs.rename({oldFileName}, {newFileName}, function (err) {
  if (err) throw err;
  console.log('File Renamed!');
});