The final step to sharing items is to specify which items will be shared and how users can access them. A user's access to an item is referred to as his privileges.
There are four types of privileges:
Read & write privileges allow the user to open and save files.
Read-only privileges allow the user to open files, but not save files.
Write-only privileges allow the user to save files but not open them.
None means the user can neither open nor save files.
Privileges can be set for three categories of users:
Owner is the user or group who can set access privileges for the item. You will probably be the owner for most, if not all, of the folders on your computer.
User/Group is the user or group that has access to the item. This can ...