linux - How to find total size of all files under the ownership of a user? -

i'm trying find out total size of files owned given user.

i've tried this:

find $myfolder -user $myuser -type f -exec du -ch {} + 

but gives me error:

missing argument exec

and don't know how fix it. can can me this?

you need terminate -exec. if want totals each directory possibly -type d required.

find $myfolder -user $myuser -type d -exec du -ch {} \;