All right, now that you've learned a lot about users, let's do a lab.
Make sure that new users require a password with a maximal validity of 90 days.
And also make sure that while creating users, an empty file with the name new file is created
to their home directory.
Then create users Anna, Anouk, Linda, and Lisa.
It's okay if some of these users already exist.
Pass the password for Anna and Anouk to password and disable the password for users Linda and
Lisa.
And then create a group, profs and students, and make user Anna and Anouk member of profs
and Linda and Lisa member of students.