说明：  一个程序创建一个虚拟工作地点： 每个会员有他/她自己的目录，这些目录只能被所有者和超级用户访问。 此外，还有一个公众目录用于沟通小组成员，但其他组无法访问这个目录。 这个目录可以防止一些资料，但只有拥有者或supuser可以改变其中的内容。
(A program to create a virtual place of work: Each member has his/her own directory, these directories can only be the owner and super-user access. In addition, there is a public directory for the communication between team members, but other groups do not have access to this directory. This directory can prevent some of the information, but only the owner or supuser can change its contents.)