reate user Peter, Brian and Cindy, create group Family and Friend. Add user Peter and Brian to the Family group, add Cindy to the Friend group. Set up password for all three users. Log in as Peter, create a file “Peter-file1”, set up permission to allow Brian to read and modify the file, but not Cindy. Verify your set up to see Peter and Brian can read and modify the file, but not Cindy. Take screenshot of your configuration.

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