user
Verify the size of a file called     **input.txt**     for a file in the current working directory, and another one in the file system root.
assistant
(formerly Perl 6)

**Works with**: Rakudo version 2015.12

```
say 'input.txt'.IO.s;
say '/input.txt'.IO.s;

```

Cross-platform version of the second one:

```
say $*SPEC.rootdir.IO.child("input.txt").s;

```