Permissions issue on file sharing when a user creates a new folder

It looks like the first double quote was changed to a “curly” quote. They all must be straight quotes.

It is stuck waiting for the ending quote.

ctrl-c should cancel the current command, or just close the terminal window, click Terminate, then open a new window.

That’s because File Sharing is not a File Server.

You will need to set up an ACL on the share that allows all members of the group to read/write what others create.

Create a Group in Users & Groups and add all users to that group. The users do not need an account on the Host Mac, but you will need to make them a Sharing Only account.

Then add this ACL to the top level folder of the Share, recursively applying it to the contents:

chmod -R +a "group:<groupName> allow list,add_file,search,add_subdirectory,delete_child,readattr,writeattr,readextattr,writeextattr,readsecurity,file_inherit,directory_inherit" "Path/to/directory/"

You'll need to edit this in a text editor to change <groupName> to the name of the group you created, and "Path/to/directory/" to the full path to the share folder.

Paste the altered text into Terminal and hit return. 

Yes. For each group and each top level folder.