a) What user(s) can change the permissions of newfile? b) How do we view what permissions are currently in place for that file? c) What are the base file and directory permissions in most Debian Linux systems? d) What permissions does the preconfigured umask set for new files and directories?

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A: Dear learner , hope you are doing well, I will try my best to answer thsi question. Thank You!!

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Linux

An operating system (OS) is the software which manages hardware and resources, like CPU, storage and memory. The OS bridges the applications and hardware and makes the connections between all of your software and the hardware resources.