Linux questions: How is sudo different from Su? What is sudo and why would you use it?

Question

Linux questions: How is sudo different from Su?  What is sudo and why would you use it?

Thomas · Accepted Answer

Both Su and Sudo allow you to run a command on the Linux system. The difference is,  Su prompts you to log in as the root user before running a command, on the other hand, you can use Sudo to run a command without logging into your administrator account.

Anónimo · Answer

su allows you to switch users.  su - puts you in the switched users home dir.  sudo gives users listed in the sudoers file, elevated privileges'.

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