root user

​root user in Linux like system is a high privilege user. This user can do almost anything in that system. For example root user can install software or perform this system reconfiguration.

It is a bad idea to use root user for daily operations because if root account is compromised, then an attacker can have great control over that system.

Temporary access to root account needs to be used. Temporary access is done with sudo command. Permissions needs to be given to a user to execute sudo command.

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