How to create a shared directory for users?

If I am running Ubuntu (on VirtualBox), how can I create a shared directory for users on the VM? For clarity, I mean a directory shared between User A and User B on the same machine, not one between the host and guest OS.

 

Is this what you wanted? https://geek-university.com/vmware-player/enable-a-shared-folder-for-a-virtual-machine/

 

Hi ahrasis, I appreciate your response. To clarify, I meant a folder shared between two users on the same Ubuntu machine, not a folder between the VM and the host.

 

Create a group, for example named someproject. Add both users to that group. Create directory where group owner is that group. Then chmod g+s that directory. Set umask on both users to g+rw so files they create are group read and write.
Using Internet Search Engines with

Code:

unix shared folder group

finds more info.
If your system supports ACL, it is possible to get more fine grained permissions and more complexity. Internet Search Engines with

Code:

unix shared folder group with ACL