empty folders

Sigh.

MacBook-Pro-2:~ mike$ bd1$ find ~/Music/iTunes -type d -empty

-bash: bd1$: command not found

Turns out, for some reason, it doesn't work 100%. I did the search and it found 3 folders, thought that odd, but I delete them. I then went into the iTunes folder and looked at a couple folders, there was one called Unknown Artists, since I just spent time cleaning up my iTunes library I found it odd that that folder didn't show up, so I looked inside it. I found two folders, then I looked inside them, both were empty. I'm guessing the search only goes one-level deep.

Here's the search showing there are no folders that are empty:

Here's the search showing that the folders under Unknown Artist are empty:

Tried that, but limiting it to the iTunes folder:

mike$ find /Users/mike/Music/iTunes -type d -empty

It only went into the first sub-folder (/Users/mike/Music/iTunes/Album Artwork/

Did not go down into other folders in the iTunes folder, either that or there are hidden files that don't display

Thanks. I didn't see Number of Items, I saw size and tried searching for zero.