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Explain and justify your answers. Explain the fields of /etc/shadow file by given examples. (15 points) 6. Write the following commands: a. Adding new username

Explain and justify your answers. Explain the fields of /etc/shadow file by given examples. (15 points)

6. Write the following commands:

a. Adding new username user1

b. Locking the test2 account.

c. Switching from userl to root.

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