Give write permissions to multiple users on a folder in Ubuntu

There are two ways to do this: set the directory to "world" writable or create a new group for the two users and make the directory writeable to that group. Obviously making it world writeable is a Bad Thing, so the second option is preferable. Users in Linux can belong to more than one group. In this case you want to create a brand new group, let's call it : Now that the group exists, add the two users to it: Now all that's left is to set the permissions on the directory: Now only members of t…