> For the complete documentation index, see [llms.txt](https://trizen.gitbook.io/sidef-lang/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://trizen.gitbook.io/sidef-lang/programming_tasks/f/file_size.md).

# File size

```ruby
say (Dir.cwd  + %f'input.txt' -> size)
say (Dir.root + %f'input.txt' -> size)
```