Step 1.\u00a0 Create three groups- employee, payroll, and admin.\u00a0<\/p>\n\n\n\n
Step 2. Create three user accounts with a specified home directory for Sophia, Olivia, and Emma. Set<\/p>\n\n\n\n
the primary group for Sophia, Olivia, and Emma to “employee”, “payroll”, and “admin”, respectively.<\/p>\n\n\n\n
And change their login shell to \/bin\/bash. Don’t forget to set their passwords.<\/p>\n\n\n\n
Step 3. Create a shared group called “your_midas” (replace it with your MIDAS name) and set this shared. The group as the above accounts\u2019 secondary group.\u00a0 After this step, remember to check each user’s group profile.<\/p>\n\n\n\n
Step 4. Create a directory named \/home\/cyse_project, which is to be owned by the \u201cyour_midas\u201d group which is a shared group). After this step, remember to check the permission of this shared directory.<\/p>\n\n\n\n
Step 5.\u00a0 Change the permissions of the \/home\/cyse_project\u00a0 directory to\u00a0 “drwxrwx—”\u00a0 using\u00a0 the octal method so that only the project group members have access to this directory. After this step, remember to check the permission of this shared directory.<\/p>\n\n\n\n
Step\u00a0 6.\u00a0 Switch to Sophia\u2019s account.\u00a0 Change the default permissions using the octal method with the umask command, to “-rw-r—–” for Sophia when she creates a file or directory. Check the value of mask, and permission of a new file after this step.<\/p>\n\n\n\n
Step 7. Create a new file called “Sophia_homework” in the home directory of Sophia and put your name in the file as content. After this step, remember to check the content and the permission of the new file. (ls -l\u00a0\u00a0 Sophia_homework)<\/p>\n\n\n\n
Step 8. Copy “Sophia_homework” to the \/home\/cyse_project directory. After this step, remember to check the permission of the file in the shared directory.\u00a0<\/p>\n\n\n\n
Step 9. Switch to Emma’s account. Try to read “Sophia_homework” in the \/home\/cyse_project Directory.<\/p>\n\n\n\n
And Extra credit:<\/p>\n\n\n\n