IntroToLinux

Review Questions

1. What’s the difference between UID and GID?
2. Where are user passwords actually stored and why?
3. How do you add a user to multiple groups simultaneously?
4. What’s the difference between su and sudo?
5. How do you prevent a user from logging in without deleting the account?
6. What file contains group membership information?

7. How do you set an account to expire on a specific date?

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