I need to give full access to user1 and user2 to this directory:drwxr-xr-- 3 oracle dba   4096 feb  9 23:16 scriptsI can't change directoy group because probably that group is needed for other users to access the directory and I can't add user1 and user2 to dba group because in this case I will give too much privileges to these users.I know I can use ACLs but, are ACLs a good practice? I think that using ACLs introduce a lot of chaos and you lose the control.Another thing I have though is to create a new group and add all users in dba group to this new group and then change directory group to this new group, would this guarantee that all users that had access to this directory will continue to have access?What would be the best practice to give these two users full access to this directory without removing permissions from other already existent users? 
Access from multiple users to same directory but can't change directory group to a common one
permissions;group;acl;privileges