rename a directory or a file

Laravel Docs

The move method may be used to rename or move an existing file to a new location:

Storage::move('hodor/file1.jpg', 'holdthedoor/file2.jpg');

this way, you can rename without moving

Storage::move('hodor/oldfile-name.jpg', 'hodor/newfile-name.jpg'); // keep the same folder to just rename 

Source

You can rename directories using

Storage::rename('oldFolder/', 'newFolder/');