I want to create a folder, so the owner can create and read files but not be able to delete them. I tried with ACL, but the owner can still delete the files.
$ setfacl --set u::rwx,g::-,o::- control
$ setfacl -d --set u::r-x,g::-,o::- control
$ touch 1.txt
$ ls -al 1.txt
-r--------. 1 user group 1.txt
$ rm 1.txt
rm: remove write-protected regular empty file `1.txt'? y