If you need that users on linux machine share directories you can accomplish that by creating a directory and assign to it privileges
First make shared directory
sudo mkdir /home/Shared\ Directory
This will create a Shared Directory directory with root as owner and with permissions of 755 meaning root can read and write and everyone else can only read.
- All users can add to and delete from the folder and can read but not write to each others files
sudo chmod 0777 /home/Shared\ Directory
[2] All users can add to but can only delete files they own and can read but not write to each others files
sudo chmod 1777 /home/Shared\ Directory
All users can add to and delete from the folder and can read and write to every file:
sudo chown :plugdev /home/Shared\ Directory
sudo chmod 2775 /home/Shared\ Directory
Note1: You may have to add your users to the plugdev group depending on how you added the user:
sudo gpasswd -a mary plugdev\ Directory
Logout and log back in again for the group change to take affect.
Original post was taken from forums.linuxmint