They say when you delete a file on a mac, accidentally or not, it can't be recovered.

There are utilities on Windows OS that recover deleted files (if they were deleted with Shift+delete)

On Linux distros, apparently, you HAVE to know how to use the terminal in order to recover a deleted file, but it's possible there too.

Is there a way to recover lost files like that on pre-intel macs too? If yes, how?