# fs.filename

## Function

Returns the part of the last level name of the path minus the extension.

## Syntax

```bt
fs(path).filename()
```

## Parameters

No parameters.

## Return value

| Type | Description |
| ------ | ------ |
| String | Returns the main name of the file. |

## Example

```bt
file = fs('/var/log/app.log')
result = file.filename()

// Output: app
print result
```

## Notes

- Returns an empty string if the path has no primary name part.