Fishing for an answer... Trying to transfer (upgrade) a shared file server to a new Mac Mini M1 on Big Sur 1- File sharing is gone from Mac Os Server App So no more Make Inherited Entries Explicit. option! 2- I know I have to change the ACL Value of all those files different groups have access to different files.... 4- I have found this here https://discussions.apple.com/thread/250537136 chmod =a# 0 "thegroup allow list,add_file,search,add_subdirectory,delete_child,readattr,writeattr,readextattr,writeextattr,readsecurity,file_inherit,directory_inherit" BadShare Would love to chat with Strontium90 to help me understand And trying to apply it in Big Sur and it's not working. Here is what I have tried: Ex: I created a group name: test created a test folder named: testfld I used Dropbox to back all the files... chmod =a# 0 “test allow list,add_file,search,add_subdirectory,delete_child,readattr,writeattr,readextattr,writeextattr,readsecurity,file_inherit,directory_inherit"  /Users/server/Dropbox/BigBackUp/Testfld getting : zsh: a# not found And it does not work any help would be appreciated Thank you